Strong anthropogenic warming from greenhouse gases combined with residual ocean heat from the 2023–2024 El Niño has kept 2026 global temperatures near record levels through mid-year, according to analyses from NOAA, NASA, and Carbon Brief. Early 2026 monthly anomalies placed the year behind 2024 but ahead of most prior records, with February ranking fifth-warmest globally; models project a best-estimate outcome of roughly 1.47 °C above pre-industrial, favoring second place behind 2024 (67 % implied probability) while leaving a modest chance of surpassing it as the warmest. A developing El Niño by late 2026 could boost remaining months, though La Niña influences earlier in the period and natural variability introduce uncertainty in final ranking.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedNOAA releases updated global surface temperature data for early 2026
2 rises to 65%1%
NOAA's updated global surface temperature dataset released in early July 2026 provided the latest measurements confirming elevated temperatures consistent with 2026 being the second hottest year, solidifying market consensus reflected in final price levels.
NASA releases final 2026 GISS No_Smoothing temperature data
NASA released the final 2026 GISS temperature file (No_Smoothing) the next day, providing the definitive figure that the market will resolve on. The anticipation of an official rank caused a final price consolidation toward outcome 2.
NASA announces upcoming redesign of NOAA data interface, temporarily limiting access
2 drops to 65%10%
NOAA announced a redesign of its data access interface scheduled for July 6-7, 2026, causing temporary unavailability of temperature data which may have contributed to market uncertainty and price volatility near early July.
Forecasts indicate 2026 Super El Niño trending toward record-breaking intensity
2 dips to 65%2%
Long-range forecasts from ECMWF and Severe Weather Europe indicated a strong and potentially record-breaking El Niño developing in 2026, expected to drive global temperature records, supporting market confidence in 2026's top ranking.
World’s oceans experience hottest June ever, signaling more heat ahead
2 drops to 67%7%
The Copernicus Climate Change Service reported the warmest June ever observed in the oceans, with El Niño onset expected to push temperatures higher, reinforcing market expectations of 2026's high rank among hottest years.
Berkeley Earth and other agencies forecast 2026 among four warmest years on record
2 dips to 67%2%
Berkeley Earth and other climate research organizations forecasted 2026 to be among the four warmest years, with probabilities favoring second or fourth place, reflecting market price movements favoring the second hottest outcome.
Reports confirm 2026 on track to be second warmest year due to strong El Niño
2 rises to 66%3%
Multiple analyses from NOAA, NASA, and Carbon Brief confirmed that 2026 temperatures remained near record levels through mid-year, driven by a strong El Niño event, solidifying market expectations that 2026 would rank as the 2nd hottest year on record.
World’s oceans experience hottest June ever, signaling more heat ahead
2 rises to 67%4%
Reports from the Copernicus Climate Change Service and EU monitors confirmed June 2026 as the warmest on record for oceans, with El Niño and climate change driving further warming, reinforcing market expectations for 2026's high temperature rank.
Climate Shift Index shows increased ocean heat influence in 2026
2 jumps to 64%5%
The Climate Shift Index: Ocean map released on June 29, 2026, demonstrated significant marine heatwaves and elevated sea surface temperatures globally, reinforcing expectations of 2026 ranking among the hottest years and supporting the 2nd place outcome.
Climate Shift Index highlights significant ocean warming in mid-2026
2 jumps to 60%7%
The Climate Shift Index: Ocean map showed increased frequency of ocean temperatures exceeding thresholds, indicating strong climate change influence, reinforcing expectations that 2026 would be among the hottest years, boosting the 2nd hottest year outcome price.
Climate Shift Index Highlights Ocean Temperature Anomalies Influencing Global Heat
2 dips to 65%3%
The Climate Shift Index: Ocean map showed significant ocean temperature anomalies and marine heatwaves, reinforcing the influence of climate change on global temperatures and supporting market confidence in 2026 ranking among the hottest years.
Climate Shift Index highlights ongoing ocean warming and marine heatwaves
2 jumps to 69%6%
The Climate Shift Index: Ocean global map released on June 28, 2026, showed significant ocean temperature anomalies consistent with climate change impacts, reinforcing expectations of a hot year. This contributed to sustained high market prices for 2026 ranking as the second hottest year.
Climate Shift Index shows widespread ocean warming, contributing to global temperature rise
2 jumps to 69%6%
Data from the Climate Shift Index indicated significant ocean warming globally, a key factor in driving up global surface temperatures and supporting the market's confidence in a top ranking for 2026.
Climate Shift Index Highlights Global Ocean Temperature Anomalies
2 jumps to 70%8%
The Climate Shift Index: Ocean map showed significant influence of climate change on daily sea surface temperatures worldwide, including marine heatwaves. This data underscored ongoing warming trends, supporting market confidence in 2026 ranking high among hottest years.
UK and Germany break June temperature records amid Europe heatwave
2 jumps to 75%12%
The UK set its highest June temperature on record, and Germany recorded a new national high, as a severe heatwave swept Europe, causing deaths and power outages, reinforcing the market's view of 2026 as a very hot year.
NASA Updates Show 2025, 2024, and 2023 as Warmest Years, Highlighting Recent Warming Trend
2 jumps to 68%5%
NASA's Scientific Visualization Studio released updated data confirming 2025, 2024, and 2023 as the three warmest years on record, emphasizing the recent warming trend and indirectly supporting expectations that 2026 would rank near the top, influencing market prices upward for the 2nd hottest year outcome.
Positive North Atlantic Oscillation index and ocean temperature anomalies reported in April 2026
2 rises to 65%3%
NOAA reported a positive NAO index and ongoing ocean temperature anomalies in April 2026, indicating persistent warm ocean conditions that contribute to elevated global temperatures. This reinforced market confidence in 2026 ranking as the second hottest year, reflected in rising prices for outcome '2'.
Carbon Brief analysis projects 2026 as second-warmest year with strong El Niño
2 jumps to 76%7%
Carbon Brief's analysis predicted 2026 to be the second-warmest year on record, with a 19% chance to surpass 2024, driven by a strong El Niño developing later in the year. This scientific projection likely caused a peak in market confidence for the second-place outcome.
NASA mid‑year update: 2026 remains within 0.02 °C of 2024 record
2 jumps to 70%8%
NASA published a mid‑year update confirming that 2026’s temperature remained within a few hundredths of a degree of the 2024 record, solidifying belief that 2026 would rank #2 rather than #1, prompting a final surge in outcome 2’s price.
UK Met Office forecasts 2026 among four warmest years on record
2 jumps to 69%6%
The UK Met Office forecasted that 2026 would likely be among the four warmest years on record, estimating a global temperature around 1.46°C above pre-industrial levels. This official forecast supported market expectations for 2026 to rank near the top, contributing to price increases for the second-place outcome.
World’s oceans experience hottest June ever recorded
2 rises to 63%3%
The Copernicus Climate Change Service reported record global sea surface temperatures in June 2026, driven by El Niño and climate change, indicating sustained global heat and supporting market expectations for a very hot year.
Global oceans break June temperature record amid strengthening El Niño
2 rises to 67%4%
Data from Copernicus Climate Change Service showed record global sea surface temperatures in June 2026, indicating strong oceanic warming that typically drives higher global temperatures, further supporting market confidence in 2026's high ranking.
Climate experts forecast 2026 as second warmest year, El Niño impact expected
2 rises to 65%2%
Climate experts including Zeke Hausfather projected 2026 to be the second warmest year on record, with a strong El Niño expected to raise temperatures further. This tempered some market expectations for 2026 being the hottest, reflected in price adjustments.
Record-breaking heat waves in Europe bolster expectations for 2026's warmth
2 rises to 59%3%
Heat records in the UK and France during May 2026 highlighted the ongoing warming trend, reinforcing expert predictions that 2026 could be the hottest year on record, influencing market prices upward for the '2' outcome.
UK and France experience record-breaking May temperatures amid persistent heatwave
2 rises to 63%3%
Record high temperatures in the UK and France during May 2026 highlighted the ongoing extreme heat events linked to climate change, supporting market expectations of 2026 ranking among the hottest years.
Leading scientist James Hansen predicts 2026 will be hottest year on record
1 jumps to 41%5%
James Hansen, a prominent climate scientist, predicted in mid-June that 2026 will surpass 2024 as the hottest year due to climate change and a strong El Niño effect. This authoritative forecast likely influenced market sentiment, increasing the probability of 2026 being the hottest year.
Climate scientist James Hansen reiterates 2026 likely to be hottest year on record
2 rises to 63%3%
James Hansen publicly reaffirmed his projection that 2026 will surpass 2024 as the hottest year, citing high climate sensitivity and ongoing El Niño effects, which bolstered market confidence in the top ranking outcome.
James Hansen reiterates 2026 will eclipse 2024 temperature record
2 jumps to 70%14%
James Hansen published an updated analysis reaffirming that 2026 should exceed the 2024 temperature record by a significant margin, citing ocean temperature anomalies and energy imbalance. This reinforced market confidence in the '2' outcome as the most likely rank for 2026.
James Hansen projects 2026 likely to be hottest year on record due to strong El Niño
2 rises to 63%1%
James Hansen's physics-based analysis projected 2026 as likely the warmest year on record, driven by a strong El Niño and high climate sensitivity, which influenced market optimism for 2026 ranking first.
NOAA issues El Niño Advisory, confirming El Niño presence and strengthening
2 jumps to 70%11%
NOAA officially announced the presence of El Niño in June 2026 and forecasted its strengthening, which typically raises global temperatures. This announcement significantly increased market confidence that 2026 would rank very high among the hottest years.
May 2026 recorded as second-warmest May globally, NOAA projects 95% chance 2026 in top four
2 jumps to 63%6%
NOAA's June report showed May 2026 as the second-warmest May on record globally and projected a 95% chance that 2026 would rank among the four warmest years. This strong data further boosted market confidence in the '2' outcome.
NOAA confirms El Niño conditions developing and expected to strengthen
2 rises to 63%4%
NOAA announced that El Niño conditions had developed in the tropical Pacific and were expected to strengthen into late 2026, increasing the likelihood of record high global temperatures and influencing market confidence in 2026's ranking.
WMO issues El Niño update with 80% likelihood for June-August 2026
2 jumps to 63%7%
The World Meteorological Organization announced a high probability of El Niño conditions developing mid-2026, which typically raises global temperatures, supporting market confidence in 2026 being among the hottest years.
NOAA reports positive North Atlantic Oscillation index and above-average sea surface temperatures
2 rises to 65%3%
NOAA's ocean monitoring report noted a positive North Atlantic Oscillation index since February 2026 and generally above-average sea surface temperatures, factors contributing to global warming trends and supporting market confidence in 2026's high temperature ranking.
Leading scientist James Hansen predicts 2026 will be hottest year on record
1 jumps to 59%7%
James Hansen, a prominent climate scientist, predicted that 2026 would be the hottest year on record due to ongoing anthropogenic warming and a strong El Niño event. This authoritative forecast influenced market prices, increasing confidence in 2026's top ranking.
Scientists report world's oceans experienced hottest June ever observed
2 jumps to 67%5%
Reports from Copernicus Climate Change Service and EU monitors indicated the oceans had their warmest June on record, with El Niño expected to push temperatures higher, supporting expectations of 2026 as a top hottest year.
Time: Polymarket gives 31 % chance 2026 will be hottest year
2 jumps to 62%5%
Time reported that Polymarket’s market gave a 31 % chance of 2026 being the hottest year and a 60 % chance of being second‑hottest. The relatively high probability of ranking #2 kept outcome 2’s price near its peak.
UN climate chief highlights extreme heat in Europe as a sign of worsening climate crisis
2 rises to 60%3%
Simon Stiell, UN climate chief, emphasized that human-induced climate change is making heatwaves more frequent and extreme, reinforcing the market's confidence in a high ranking for 2026's temperature.
UN report warns of record hot years likely by 2030, with 2026 in the lead
2 rises to 60%4%
The UN World Meteorological Organization released a report predicting an 86% chance that at least one year between 2026 and 2030 will surpass 2024 as the hottest year, with 2026 strongly in contention due to El Niño and climate change.
UN WMO report predicts 86% chance of a year hotter than 2024 between 2026-2030
2 jumps to 63%7%
The UN's World Meteorological Organization released a report forecasting an 86% chance that at least one year between 2026 and 2030 will surpass 2024 as the hottest year on record, with a predicted El Niño at the end of 2026 increasing the likelihood of 2027 being the hottest. This reinforced market expectations for 2026 to be among the hottest years, supporting the second-place ranking.
UN report warns 86% chance of year between 2026-2030 surpassing 2024 as hottest
2 jumps to 63%6%
The UN, via the WMO and UK Met Office, released a report forecasting an 86% chance that at least one year between 2026 and 2030 will surpass 2024 as the hottest year on record, largely due to the expected El Niño. This heightened market belief in 2026's high temperature ranking.
UN and UK Met Office report predicts 86% chance of record-breaking year between 2026-2030
2 surges to 56%16%
The World Meteorological Organization and UK Met Office released a report on May 28 stating there is an 86% chance that at least one year between 2026 and 2030 will surpass 2024 as the hottest year. This report highlighted the likelihood of 2026 or subsequent years breaking records, impacting market expectations and increasing the probability of 2026 ranking high among hottest years.
UN warns record hot year almost certain by 2030, highlights 2026 heat waves
2 rises to 57%3%
The UN's warning about record heat and the ongoing European heat wave in May 2026 underscored the accelerating climate crisis, supporting market expectations that 2026 would rank among the hottest years.
UN report predicts 86% chance 2026-2030 will include hottest year on record
2 jumps to 69%9%
The UN World Meteorological Organization released a report stating an 86% chance that at least one year between 2026 and 2030 will surpass 2024 as the hottest year, increasing market confidence in 2026's high ranking.
Spring heatwave in Europe breaks records, fueling fears of hottest year
2 jumps to 56%10%
In late May, Europe experienced an unusually early and intense heatwave, with western France, England, and Wales seeing temperatures more than 10°C above average. This event underscored the ongoing warming trend and supported market confidence in 2026 being among the hottest years on record.
NASA Earthdata shows warming in eastern equatorial Pacific indicating possible El Niño development
2 surges to 57%15%
A NASA Earthdata visualization from May 26, 2026, showed warmer-than-average sea surface temperatures in the eastern equatorial Pacific, confirming predictions of a developing El Niño event that could make 2026 one of the hottest years.
Europe experiences record early heatwave linked to warming and El Niño
2 jumps to 57%5%
A record-breaking early heatwave in Europe during May 2026 was linked by climate scientists to the combination of background warming and the emerging El Niño, signaling the potential for 2026 to be among the hottest years. This event likely reinforced market confidence in the second-place outcome.
NASA data shows warmer sea surface temperatures in eastern tropical Pacific, signaling El Niño development
2 rises to 58%4%
NASA's May 26 data revealed warmer than average sea surface temperatures in the eastern equatorial Pacific, indicating a developing El Niño event. This bolstered expectations of a strong El Niño, which typically raises global temperatures, supporting the market's view that 2026 could be among the hottest years.
WMO update confirms strong El Niño development likely in summer 2026
2 rises to 59%3%
The WMO's May 2026 update indicated that sea surface temperature anomalies were increasing, signaling a strong likelihood of El Niño conditions developing in summer 2026. This forecast raised market confidence that 2026 would be among the hottest years on record.
WMO reports rising chance of El Niño onset in mid-2026
2 surges to 56%20%
The World Meteorological Organization indicated a rising probability of El Niño developing by May–July 2026, which would likely increase global temperatures. This scientific update increased market prices for 2nd hottest year, reflecting expectations of strong warming but uncertainty about surpassing 2024.
Octagon AI warns strong El Niño needed for 2026 to beat record
3 plunges to 3%37%
Octagon AI’s analysis noted that a strong late‑year El Niño would be required for 2026 to set a new record, reminding traders that the outcome could still be lower than #2, which modestly lifted the price of outcome 3.
WMO seasonal climate update projects rapid warming trend toward El Niño by May-July 2026
2 jumps to 57%5%
The World Meteorological Organization's seasonal update indicated a rapid warming trend in the Niño 3.4 region, forecasting a nearly unanimous trajectory toward El Niño conditions by May-July 2026, reinforcing expectations of elevated global temperatures and supporting the market's increased confidence in 2026 ranking as the second hottest year.
Europe Experiences Severe Spring Heat Wave Raising Record Heat Concerns
2 jumps to 57%7%
A significant spring heat wave in Europe heightened concerns about 2026 potentially becoming the hottest year on record, reinforcing market sentiment favoring a top ranking for 2026 in global temperature records.
NOAA and NASA confirm strong El Niño developing, boosting 2026 temperature forecasts
2 jumps to 59%6%
NOAA and NASA reported strengthening El Niño conditions expected to raise global temperatures in late 2026 and 2027. This increased the likelihood of 2026 ranking among the hottest years, supporting the market's preference for '2' and '1' outcomes.
World Meteorological Organization warns 86% chance of a new hottest year by 2030, with 2026 in focus
2 jumps to 55%12%
The WMO report highlighted an 86% chance that one of the next five years, including 2026, will surpass 2024 as the warmest year, reinforcing market confidence in a top ranking for 2026.
Leading scientists predict 2026 will be hottest year on record due to climate change and strong El Niño
2 jumps to 55%9%
Scientists including James Hansen forecasted 2026 to surpass 2024 as the hottest year, driven by climate change and a powerful El Niño event, raising market expectations for a top ranking.
Climate scientist James Hansen predicts 2026 will be hottest year on record
2 jumps to 46%5%
James Hansen publicly predicted that 2026 will surpass 2024 as the hottest year on record due to climate change and a strong El Niño effect. This high-profile forecast likely influenced market sentiment, increasing the probability of 2026 ranking first or second.
Leading scientist James Hansen predicts 2026 will be the hottest year on record
1 jumps to 33%5%
James Hansen and colleagues published a blog post arguing that 2026 will break the global temperature record due to accelerating warming and a strong El Niño, influencing market expectations toward the highest ranking for 2026.
UN WMO report predicts 86% chance of a year between 2026-2030 surpassing 2024's heat record
2 jumps to 55%10%
The World Meteorological Organization's report increased confidence in a new record hot year soon, citing a strong likelihood that 2026 or a subsequent year would surpass 2024, boosting market confidence in 2026's high ranking.
WMO cites Hausfather: 2026 has 26 % chance of being the hottest year
2 jumps to 56%11%
A WMO blog post cited Hausfather’s analysis that gave 2026 a 26 % chance of becoming the hottest year. The moderate probability sustained market interest in outcome 2, preventing a sharp drop in its price.
James Hansen projects 2026 likely to be warmest year on record
1 jumps to 32%11%
Climate scientist James Hansen published a physics-based analysis projecting 2026 to surpass 2024 as the warmest year, citing high climate sensitivity and energy imbalance. This boosted market confidence in the '1' outcome temporarily, though uncertainty remained.
James Hansen predicts 2026 will be the warmest year on record
2 jumps to 70%14%
James Hansen posted a technical note arguing that 2026 was on track to become the warmest year, emphasizing the upcoming El Niño. The bullish scientific prediction reinforced confidence in outcome 2, pushing its price higher.
Monthly Climate Report indicates continued high global temperatures in early 2026
2 jumps to 55%9%
The National Centers for Environmental Information released monthly climate summaries showing sustained elevated global temperatures in early 2026, supporting the market's increased probability for 2026 ranking as the 2nd hottest year.
WMO issues alert for possible early onset of strong El Niño in mid-2026
2 jumps to 46%5%
The World Meteorological Organization warned that an El Niño event could develop as early as May to July 2026, likely causing above-normal global land temperatures. This alert increased market confidence that 2026 would rank among the hottest years, boosting the probability of the second-place outcome.
Carbon Brief updates 2026 temperature forecast amid European heat wave
2 jumps to 55%9%
Carbon Brief updated its forecast on April 21, 2026, emphasizing the impact of a spring heat wave in Europe and the likely return of El Niño, increasing the probability of 2026 being the second hottest year. This news contributed to a price increase for the 2nd hottest year outcome.
Carbon Brief forecasts 2026 likely second hottest year amid El Niño prospects
2 jumps to 46%10%
Carbon Brief published a forecast estimating a 19% chance of 2026 being the warmest year and a 62% chance of it being the second warmest, based on aggregated El Niño projections and global temperature models. This forecast influenced market expectations, increasing the probability of 2026 ranking second hottest.
Carbon Brief: 2026 has 62 % chance of being the second‑warmest year on record
1 drops to 27%6%
Carbon Brief published a forecast giving 2026 a 19 % chance of being the warmest year and a 62 % chance of being the second‑warmest. The strong El Niño outlook shifted sentiment toward outcomes 1 and 2, pulling price down for outcome 1 and up for outcome 2.
Carbon Brief forecasts 2026 as second-hottest year with 19% chance of hottest
2 rises to 40%4%
On April 21, Carbon Brief forecasted that 2026 has a 19% chance of being the hottest year and a 62% chance of being the second hottest, estimating global average temperature at 1.47°C above pre-industrial levels. This forecast influenced market prices, increasing confidence in 2026 being among the top hottest years but not necessarily the hottest.
Carbon Brief Forecasts 2026 Temperature Ranking with El Niño Influence
2 surges to 56%17%
Carbon Brief published a forecast estimating a 19% chance that 2026 would be the warmest year on record and a 62% chance it would be the second warmest, based on aggregated El Niño projections and global temperature models. This forecast influenced market prices by increasing confidence in 2026 being among the hottest years, particularly second place.
Carbon Brief forecasts 19% chance 2026 will be hottest year, 62% chance second hottest
2 surges to 56%20%
Carbon Brief published a forecast estimating 2026 has a 19% chance of being the warmest year and a 62% chance of being the second warmest, based on global average temperature projections and El Niño expectations. This forecast influenced market confidence, boosting the probability of 2026 ranking second hottest.
NOAA reports April 2026 as fourth-warmest April globally, NASA rates it third-warmest
2 jumps to 56%10%
NOAA and NASA reported April 2026 as among the warmest Aprils on record globally, with NOAA giving a 93% chance that 2026 would rank among the four warmest years. This reinforced market confidence in 2026 being a top-ranked warm year, supporting the '2' outcome.
NOAA reports March 2026 as second warmest March on record, supporting high 2026 temperature ranking
2 rises to 43%3%
NOAA's report that March 2026 tied with 2024 as the second warmest March on record indicated strong early-year warmth, increasing confidence that 2026 will rank among the top five hottest years.
WMO reports likely El Niño development mid-2026, boosting global temperatures
2 jumps to 56%10%
The World Meteorological Organization reported a high confidence in the onset of El Niño conditions from mid-2026, expected to increase global temperatures and influence 2026 to be among the warmest years, driving market expectations upward.
March 2026 tied as second-warmest March on record, El Niño watch continues
2 jumps to 41%5%
NOAA reported March 2026 as tied with 2024 for the second-warmest March on record, with El Niño conditions likely to emerge soon. This early-year data supported expectations for a very warm 2026, influencing market prices upward for top rankings.
NOAA Global Surface Temperature Dataset (NOAAGlobalTemp) Version 6.1 released
2 rises to 42%2%
NOAA released the updated NOAAGlobalTemp Version 6.1 dataset, which combines ocean and land temperature data to produce a globally complete surface temperature dataset for analysis of 2026 temperatures.
NOAA releases updated Global Surface Temperature Dataset version 6.1
2 jumps to 46%6%
NOAA published the updated NOAAGlobalTemp dataset combining land and ocean temperatures, providing refined data for 2026 temperature estimates, which increased confidence in 2026 being the 2nd hottest year, reflected in rising market prices for that outcome.
NOAA: March 2026 ties for second‑warmest March on record
2 jumps to 45%5%
NOAA’s monthly climate report highlighted March 2026 as the fourth‑warmest March on record, with a 2.36 °F departure. The strong early‑year signal increased belief that 2026 could rank in the top‑two, boosting outcome 2 and weakening outcome 3.
WMO reports fading La Niña, rising chance of El Niño by mid-2026
2 rises to 39%3%
The World Meteorological Organization reported that weak La Niña conditions were fading and that there was an increasing probability of El Niño developing by mid-2026. This shift is known to increase global temperatures, boosting market expectations for 2026's high temperature ranking.
NASA updates show 2025 as third warmest year, 2026 forecast uncertain
1 drops to 21%12%
NASA and other agencies confirmed 2025 as the third warmest year on record, with 2026's ranking uncertain but expected to be high. This tempered expectations for 2026 being the hottest, causing some market price volatility and a dip in the '1' outcome.
NASA confirms 2025 as one of the three warmest years on record
2 jumps to 42%6%
NASA's GISS Surface Temperature Analysis highlighted 2025, 2024, and 2023 as the three warmest years in their 146-year record, reinforcing the trend of rising global temperatures and supporting market expectations for 2026 to rank highly among hottest years.
NASA confirms 2025 as third warmest year on record
2 rises to 42%2%
NASA's GISS Surface Temperature Analysis version 4 confirmed 2025 as the third warmest year, reinforcing expectations that 2026 would be very hot but unlikely to surpass the hottest years. This supported market confidence in 2026 ranking second rather than first or third.
NASA confirms 2024, 2025, and 2023 as top three hottest years on record
2 rises to 39%3%
NASA's GISS Surface Temperature Analysis update highlighted 2024, 2025, and 2023 as the three warmest years in their 146-year record, setting a recent high baseline for global temperatures and influencing market expectations for 2026's ranking.
NASA publishes updated global temperature analysis highlighting 2023-2025 as hottest years
2 rises to 42%3%
NASA's GISS Surface Temperature Analysis version 4 was updated, showing 2023, 2024, and 2025 as the three warmest years on record, influencing market expectations that 2026 might not surpass these years, thus affecting the ranking probabilities.
NASA Confirms 2023-2025 as Warmest Years on Record
2 rises to 38%2%
NASA's Scientific Visualization Studio published data confirming that 2023, 2024, and 2025 were the three warmest years in their 146-year record, setting a recent high baseline for global temperatures. This context influenced market perceptions about 2026's potential ranking.
NASA visualizes 2025‑2023 as three hottest years in its 146‑year record
2 surges to 65%26%
NASA’s Scientific Visualization Studio released a graphic showing 2025, 2024 and 2023 as the three hottest years on record. The visual reminder of recent record‑breaking years pushed traders toward the belief that 2026 would rank near the top, driving the price of outcome 2 upward.
NASA analysis shows 2025 slightly warmer than 2023, 2024 hottest on record
2 rises to 46%3%
NASA scientists released data showing 2025 was slightly warmer than 2023 but cooler than 2024, the hottest year on record. This data reinforced the ongoing warming trend and influenced market confidence in 2026's high ranking.
NASA confirms 2025 as third‑warmest year on record
2 jumps to 41%7%
NASA released a press statement confirming that 2025 was the third‑warmest year, reinforcing the narrative that recent years are clustering at the top of the record. This raised expectations that 2026 would be near the top, nudging the market toward outcome 2.
NASA confirms 2025 among three hottest years on record, warming trend continues
2 rises to 40%1%
NASA's analysis confirmed that 2025 was one of the three warmest years recorded, continuing a trend of rising global temperatures. This reinforced expectations that 2026 would also be very warm, influencing market confidence in a high ranking for 2026.
NOAA reports 2025 as Earth's 3rd-warmest year, forecasts 2026 likely top five warmest
1 drops to 28%5%
NOAA's January 2026 report confirmed 2025 as the third-warmest year on record and forecasted a less than 1% chance that 2026 would surpass 2024 as the hottest year, but a 75% chance of being in the top five. This tempered expectations and influenced market prices, reducing confidence in 2026 being the hottest year.
NASA releases data showing 2025 as third warmest year, with 2026 forecasted among top warmest
2 rises to 40%2%
NASA's release of global temperature data confirmed 2025 as the third warmest year on record and highlighted projections that 2026 would be among the four warmest years, reinforcing market confidence in a high ranking for 2026.
WMO confirms 2025 among three warmest years on record
2 jumps to 43%7%
The World Meteorological Organization confirmed 2025 as one of the three warmest years on record, reinforcing the trend of extraordinary global temperatures and supporting forecasts that 2026 would continue this pattern of high temperatures.
NASA releases global temperature data showing 2025 near 2023 levels, 2024 remains hottest
2 dips to 36%3%
NASA's Goddard Institute for Space Studies published data indicating 2025 was slightly warmer than 2023 but within margin of error, confirming 2024 as the hottest year on record. This data influenced market confidence in 2026's potential ranking.
NASA confirms 2024 as hottest year on record, 2025 slightly warmer than 2023
2 dips to 36%3%
NASA released global temperature data showing 2024 remains the hottest year since 1880, with 2025 slightly warmer than 2023 but within margin of error. This reinforced the view that 2026 would need strong warming to surpass 2024, influencing market prices to favor 2nd hottest rather than 1st.
Scientists report 2025 ocean heat content hits record high
2 rises to 41%2%
New research in early January 2026 found that ocean heat content reached record levels in 2025, raising the planet's baseline temperature and increasing the likelihood that 2026 would be among the hottest years. This scientific finding supported market expectations for a high ranking of 2026's temperature.
UK Met Office confirms 2025 as UK's hottest and sunniest year on record
2 rises to 38%2%
The UK national weather service confirmed that 2025 was the hottest and sunniest year on record, demonstrating the ongoing impact of climate change and setting a context for expectations of 2026's temperature ranking.
Record-breaking warm Christmas temperatures across the US
2 dips to 36%3%
Unprecedented warmth was recorded across many US states on Christmas Day 2025, with multiple locations setting new high temperature records, signaling an ongoing trend of extreme heat that contributed to market expectations for a hot 2026.
Copernicus Climate Service confirms 2025 as third hottest year on record
2 rises to 41%2%
The Copernicus Climate Change Service reported that 2025 was the third hottest year globally, following 2024 and 2023, reinforcing the ongoing warming trend and setting the stage for expectations about 2026's temperature ranking.
NASA confirms 2025 among warmest years, 2024 remains hottest on record
2 rises to 40%1%
NASA's release of global temperature data confirmed that 2025 was slightly warmer than 2023 but still behind 2024, the hottest year on record. This set the baseline for market expectations that 2026 would compete closely with recent record highs.
Carbon Brief forecasts 2026 likely second-hottest year amid El Niño prospects
2 jumps to 46%7%
Carbon Brief published a forecast estimating a 19% chance of 2026 being the warmest year and a 62% chance of it being the second warmest, based on El Niño projections and global temperature models. This forecast increased market confidence in the 2nd hottest year outcome, reflected in rising prices.

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