Global warming is already reshaping risks for people and ecosystems across regions, with extreme heat, drought, flooding, and storms hitting hardest where vulnerability is high. The evidence shows up in the atmosphere and the cryosphere, from rising carbon dioxide, methane, and nitrous oxide to sea level rise and shrinking Arctic sea ice, alongside Greenland ice losses. This page links these indicators to real-world impacts and costs, then reviews adaptation and mitigation pathways.
Key Takeaways
- 2011–2020 was about 1.09°C warmer than 1850–1900, per IPCC AR6 assessed global surface temperature change.
- IPCC AR6 assessed that the frequency and intensity of droughts have increased in some regions since 1950, with stronger evidence in parts of the Mediterranean and West Africa.
- As of 2024, the NOAA global land and ocean temperature index indicates 2016, 2020, 2023 and 2024 are among the warmest years in the record, with 2023 being the warmest.
- The IPCC AR6 assessed that adaptation gaps exist and increased adaptation investments are required, estimating that costs can reach hundreds of billions of USD annually depending on scenarios (summarized in WG2).
- Carbon dioxide is the largest contributor to net anthropogenic climate change, accounting for about 76% of total greenhouse gas emissions in CO2-equivalent terms in 2019 per IPCC AR6.
- The IEA reported that global clean energy investment reached $1.8 trillion in 2022, rising to $2.0 trillion in 2023 (IEA World Energy Investment report).
- 421 parts per million (ppm) of atmospheric CO2 was measured at Mauna Loa in May 2024, reflecting sustained rise over preindustrial levels.
- 2,064 ppb of atmospheric methane (CH4) was measured in 2023 on the NOAA global monitoring record, indicating continued increases over the observational record.
- The NOAA Global Monitoring Laboratory reports that atmospheric N2O concentrations exceeded 336 ppb in 2023.
- 1.5°C and 2.0°C temperature thresholds are embedded in UN climate targets; the IPCC AR6 uses these thresholds to evaluate risk across warming levels, including impacts and mitigation pathways.
- NOAA estimates that global sea level has risen about 8 inches (about 21 cm) since 1880, based on NOAA tide-gauge and sea-level analyses.
- NASA reports that Arctic sea ice extent has declined by about 13% per decade relative to 1981–2010 during 1979–2023 averages.
- 1.1°C of warming above 1850–1900 is the approximate central estimate used for projecting impacts in the IPCC AR6 synthesis, based on assessed temperature change up to around 2011–2020.
- 43% of global greenhouse gas emissions in 2019 were from CO2 alone in energy-related sectors (i.e., fossil fuels and industrial processes), as reflected in the IPCC AR6 WG3 assessment of greenhouse gas sources.
- 43% of people live in areas with high vulnerability to climate change and extreme weather (including heat, flooding, drought, and storms) per the World Meteorological Organization’s State of Climate Services report summary statistics.
The planet is warming fast and impacts are growing, while CO2 keeps rising and adaptation and clean energy must scale urgently.
Related reading
01 · Category
Policy & Mitigation6 stats
01
The IPCC AR6 assessed that adaptation gaps exist and increased adaptation investments are required, estimating that costs can reach hundreds of billions of USD annually depending on scenarios (summarized in WG2).https://www.ipcc.ch/report/ar6/wg2/
02
Carbon dioxide is the largest contributor to net anthropogenic climate change, accounting for about 76% of total greenhouse gas emissions in CO2-equivalent terms in 2019 per IPCC AR6.https://www.ipcc.ch/report/ar6/wg3/
03
The IEA reported that global clean energy investment reached $1.8 trillion in 2022, rising to $2.0 trillion in 2023 (IEA World Energy Investment report).https://www.iea.org/reports/world-energy-investment-2024
04
The IEA estimated that demand for clean energy technologies grew sharply, with key components (solar PV modules and heat pumps) showing rapid year-over-year growth in 2023 in its analysis.https://www.iea.org/reports/world-energy-outlook-2023/clean-energy-pathto-net-zero
05
The IEA reported that renewable electricity generation increased to 30% of global generation in 2023 (shares vary by source; IEA provides the latest update in its system).https://www.iea.org/reports/electricity-market-report-2024/executive-summary
06
The UNEP Emissions Gap Report 2023 estimated that countries’ current policies and NDCs would result in 2030 emissions of about 55–59 GtCO2e, above the 1.5°C compatible range.https://www.unep.org/resources/emissions-gap-report-2023
Interpretation
Policy & Mitigation Interpretation
Policy and mitigation efforts are clearly accelerating but still have major gaps, with IPCC AR6 stressing the need for higher adaptation investment while global clean energy funding climbed from $1.8 trillion in 2022 to $2.0 trillion in 2023, yet UNEP still projects 2030 emissions at about 55 to 59 GtCO2e under current policies and NDCs.
02 · Category
Risk & Impacts5 stats
01
1.5°C and 2.0°C temperature thresholds are embedded in UN climate targets; the IPCC AR6 uses these thresholds to evaluate risk across warming levels, including impacts and mitigation pathways.https://www.ipcc.ch/report/ar6/syr/
02
NOAA estimates that global sea level has risen about 8 inches (about 21 cm) since 1880, based on NOAA tide-gauge and sea-level analyses.https://oceanservice.noaa.gov/facts/sealevel.html
03
NASA reports that Arctic sea ice extent has declined by about 13% per decade relative to 1981–2010 during 1979–2023 averages.https://climate.nasa.gov/vital-signs/arctic-sea-ice/
04
NASA reports the Greenland ice sheet has lost mass at an average rate of about 279 billion tons per year (2002–2020 in NASA’s Greenland ice mass loss summaries).https://climate.nasa.gov/vital-signs/greenland/
05
NASA reports that Antarctic ice loss increased to an average rate of about 148 billion tons per year (2002–2020 summary).https://climate.nasa.gov/vital-signs/antarctic-ice-mass/
Interpretation
Risk & Impacts Interpretation
For the Risk and Impacts category, the sharp physical changes driven by warming are already evident, with global sea level up about 21 cm since 1880 and Arctic sea ice declining roughly 13% per decade, while ice-sheet losses continue to accelerate with Greenland shedding about 279 billion tons per year and Antarctica about 148 billion tons per year.
03 · Category
Energy Transition4 stats
01
1,400 GW of solar PV capacity was installed globally by end-2023 (cumulative), per Ember’s Global Electricity Review dataset released alongside the report.https://ember-climate.org/data/global-electricity-review/
02
38% of global electricity capacity additions in 2023 were from solar PV alone, per Ember’s capacity mix analysis in the Global Electricity Review 2024.https://ember-climate.org/insights/research/global-electricity-review-2024/
03
US$600 billion of investment in clean energy was tracked globally in 2023 in BloombergNEF’s New Energy Outlook framework (investment tracking for that year), per BNEF’s reported outlook figures.https://about.bnef.com/new-energy-outlook/
04
6.3 GW of grid-scale battery storage was added globally in 2023, per Ember’s electricity storage reporting compiled in the Global Electricity Review.https://ember-climate.org/data/grid-battery-storage/
Interpretation
Energy Transition Interpretation
By the end of 2023, global energy transition momentum was clear as 1,400 GW of solar PV had been installed cumulatively and solar accounted for 38% of all new electricity capacity additions in 2023, alongside US$600 billion in clean energy investment and the addition of 6.3 GW of grid-scale battery storage.
More related reading
04 · Category
Policy And Finance4 stats
01
7.0% year-over-year growth in global heat pump sales occurred in 2023, per the IEA’s Heat Pumps Market report dataset (tracked market figures for 2023).https://www.iea.org/reports/heat-pumps
02
US$10.5 trillion cumulative total climate-related finance mobilized by 2022 was reported by OECD as part of its climate finance statistics system tracking public and private mobilization.https://www.oecd.org/climate-change/finance-usd-to-trillion-climate-finance-statistics.htm
03
USD 100 billion per year is the internationally agreed climate finance goal under the UNFCCC for support to developing countries, as reaffirmed by the OECD and UNFCCC materials.https://unfccc.int/process-and-meetings/the-big-picture/climate-finance
04
90 countries submitted updated NDCs or NDC updates as of 2023, according to UNFCCC NDC registry records summarized in UNFCCC reporting.https://unfccc.int/NDCREG
Interpretation
Policy And Finance Interpretation
Policy and finance are accelerating tangible climate action as shown by a 7.0% year over year rise in 2023 heat pump sales alongside $10.5 trillion of cumulative climate related finance mobilized by 2022, with countries also pushing forward by updating NDCs in 90 countries as of 2023 toward the long agreed $100 billion per year UNFCCC support goal.
05 · Category
Greenhouse Gases3 stats
01
421 parts per million (ppm) of atmospheric CO2 was measured at Mauna Loa in May 2024, reflecting sustained rise over preindustrial levels.https://gml.noaa.gov/webdata/ccgg/trends/co2/co2_mm_mlo.txt
02
2,064 ppb of atmospheric methane (CH4) was measured in 2023 on the NOAA global monitoring record, indicating continued increases over the observational record.https://gml.noaa.gov/webdata/ccgg/trends/ch4/ch4_mm_gl.txt
03
The NOAA Global Monitoring Laboratory reports that atmospheric N2O concentrations exceeded 336 ppb in 2023.https://gml.noaa.gov/webdata/ccgg/trends/n2o/n2o_mm_gl.txt
Interpretation
Greenhouse Gases Interpretation
In the greenhouse gases category, greenhouse forcing continues to intensify as atmospheric CO2 reached 421 ppm at Mauna Loa in May 2024 and both methane and nitrous oxide also remain elevated in NOAA records with CH4 at 2,064 ppb in 2023 and N2O exceeding 336 ppb in 2023.
06 · Category
Overview10 stats
01
2.0x is the factor by which adaptation finance needs to increase by 2030 to close a portion of the gap, according to the UNEP Adaptation Gap Report 2023 estimates.https://www.unep.org/resources/adaptation-gap-report-2023
02
US$2.8 trillion per year is the estimated annual investment needed for climate mitigation by 2030 to align with 1.5°C pathways, as synthesized in leading assessments reported by the UN Climate Change (UNFCCC) and partner materials.https://unfccc.int/news/new-un-climate-change-report-puts-numbers-to-the-funding-gap-on-climate-action
03
5.5 TW of renewable power capacity is targeted by 2030 in IRENA’s pathways analysis under a rapid transition, per World Energy Transitions Outlook 2024 scenarios.https://www.irena.org/publications/2024/Mar/World-Energy-Transitions-Outlook-2024
04
IPCC AR6 assessed that the frequency and intensity of droughts have increased in some regions since 1950, with stronger evidence in parts of the Mediterranean and West Africa.https://www.ipcc.ch/report/ar6/wg1/
05
As of 2024, the NOAA global land and ocean temperature index indicates 2016, 2020, 2023 and 2024 are among the warmest years in the record, with 2023 being the warmest.https://www.ncei.noaa.gov/access/monitoring/climate-at-a-glance/global/time-series
06
1.1°C of warming above 1850–1900 is the approximate central estimate used for projecting impacts in the IPCC AR6 synthesis, based on assessed temperature change up to around 2011–2020.https://www.ipcc.ch/report/ar6/syr/resources/spm-headline-statements/
07
43% of global greenhouse gas emissions in 2019 were from CO2 alone in energy-related sectors (i.e., fossil fuels and industrial processes), as reflected in the IPCC AR6 WG3 assessment of greenhouse gas sources.https://www.ipcc.ch/report/ar6/wg3/resources/spm-headline-statements/
08
43% of people live in areas with high vulnerability to climate change and extreme weather (including heat, flooding, drought, and storms) per the World Meteorological Organization’s State of Climate Services report summary statistics.https://wmo.int/publication-series/state-of-climate-services
09
US$287 billion in total economic losses from weather and climate disasters occurred in 2023, per NOAA’s Billion-Dollar Weather and Climate Disasters dataset.https://www.ncei.noaa.gov/access/billions/
10
2011–2020 was about 1.09°C warmer than 1850–1900, per IPCC AR6 assessed global surface temperature change.https://www.ipcc.ch/report/ar6/syr/figures/
Interpretation
Industry Overview Interpretation
The Industry Overview picture is that closing the climate challenge by 2030 will require major scale up efforts, with adaptation finance needing to grow by 2.0x and climate mitigation investment reaching about US$2.8 trillion per year to stay on 1.5°C pathways.
Reference
Cite This Report
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APA
Min-ji Park. (2026, February 13). Global Warming Statistics. Gitnux. https://gitnux.org/global-warming-statistics
MLA
Min-ji Park. "Global Warming Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/global-warming-statistics.
Chicago
Min-ji Park. 2026. "Global Warming Statistics." Gitnux. https://gitnux.org/global-warming-statistics.
Sources & references
32 datasets cited across this report
+19 additional datasets cited (not shown individually)