Global CO2 emissions reached 51.9 gigatons in 2023 while renewable power capacity climbed to 1,530 gigawatts by the end of that same year. Air pollution remains a parallel crisis with WHO estimating that 99% of the world’s population breathes air above PM2.5 guideline limits in 2019. This post brings those tensions together through key environment statistics so you can see what is accelerating, what is stalling, and where policy and technology are making measurable differences.
Key Takeaways
- 1,530 gigawatts of renewable power capacity existed globally by end of 2023, according to IRENA’s Renewable Capacity Statistics 2024 dataset
- Over 70% of new power generation capacity additions in 2023 were renewable sources in most regions, as summarized by Ember’s Global Electricity Review 2024
- Global renewable energy capacity is expected to reach 4,900 GW by 2030 under current stated policies, as forecast by IRENA in its World Energy Transitions Outlook summary
- Only 9% of plastic packaging is recycled globally, according to a 2020 report by OECD and partners and repeated in OECD’s plastics outlook material
- In 2019, the global recycling rate for paper and paperboard was 58.2%, based on data used in OECD’s Global Plastics Outlook and broader material recycling statistics compilation
- WHO estimates that 99% of the world’s population breathes air that exceeds guideline limits for PM2.5 in 2019, based on WHO’s Air quality estimates
- 4.2 million deaths globally in 2016 were attributed to outdoor air pollution, as reported in the Lancet Commission on pollution and health
- 25% of lung cancer deaths were attributable to air pollution in 2019 in the WHO systematic analysis used for health impact estimates
- $2.6 trillion of sustainable finance mobilized globally in 2022 across bonds, loans, and other products was reported by the Global Sustainable Investment Alliance (GSIA) and market surveys
- The EU’s Fit for 55 package sets a target to reduce net greenhouse gas emissions by 55% by 2030 compared with 1990 levels, as codified in EU legislation
- The US Inflation Reduction Act provides about $369 billion for energy and climate spending over 10 years as estimated by the Congressional Budget Office cost estimate
- 1.5 million heat-related deaths were estimated globally in 2019 due to extreme heat, based on the Lancet Countdown report’s health risk assessments
- Approximately 10% of global flood risk is expected to be affected by sea-level rise by 2050 compared with baseline (depending on emissions pathway), as modeled by the OECD in its flood risk assessments
- The fraction of global population exposed to at least one climate hazard increased by 26% between 2000 and 2019 in an analysis by the IPCC and related geospatial assessments summarized in IPCC AR6 WGII
- 6.1% of total final energy consumption came from electricity in 2022, with 1.6 percentage points of growth since 2012 (IEA data).
Renewables are accelerating fast, but air pollution and climate risks still drive millions of deaths worldwide.
Related reading
01 · Category
Energy Transition4 stats
01
1,530 gigawatts of renewable power capacity existed globally by end of 2023, according to IRENA’s Renewable Capacity Statistics 2024 dataset
02
Over 70% of new power generation capacity additions in 2023 were renewable sources in most regions, as summarized by Ember’s Global Electricity Review 2024
03
Global renewable energy capacity is expected to reach 4,900 GW by 2030 under current stated policies, as forecast by IRENA in its World Energy Transitions Outlook summary
04
Heat pumps accounted for 7% of global residential heating equipment sales in 2023, based on the IEA’s Heat Pump progress metrics
Interpretation
Energy Transition Interpretation
The energy transition is accelerating fast as renewable power capacity reached 1,530 gigawatts by the end of 2023 and is projected to climb to 4,900 gigawatts by 2030, with heat pumps already making up 7% of residential heating sales in 2023.
02 · Category
Waste & Circularity2 stats
01
Only 9% of plastic packaging is recycled globally, according to a 2020 report by OECD and partners and repeated in OECD’s plastics outlook material
02
In 2019, the global recycling rate for paper and paperboard was 58.2%, based on data used in OECD’s Global Plastics Outlook and broader material recycling statistics compilation
Interpretation
Waste & Circularity Interpretation
For Waste and Circularity, the stark gap is that only 9% of plastic packaging is recycled globally while paper and paperboard reach a 58.2% recycling rate in 2019, underscoring how far circularity still has to go for plastics.
03 · Category
Health & Air Quality6 stats
01
WHO estimates that 99% of the world’s population breathes air that exceeds guideline limits for PM2.5 in 2019, based on WHO’s Air quality estimates
02
4.2 million deaths globally in 2016 were attributed to outdoor air pollution, as reported in the Lancet Commission on pollution and health
03
25% of lung cancer deaths were attributable to air pollution in 2019 in the WHO systematic analysis used for health impact estimates
04
In 2021, global cost of air pollution to human health was estimated at $5.1 trillion in welfare losses, per OECD estimates reported in its report series on air pollution costs
05
Ozone (O3) exposure accounted for an estimated 254,000 deaths globally in 2019 due to ambient air pollution, as reported in a global burden study
06
A 2020 European study estimated that air pollution exposure contributed to about 238,000 premature deaths in 2015 in Europe, as summarized in peer-reviewed work
Interpretation
Health & Air Quality Interpretation
For the Health & Air Quality category, the scale of harm is clear because in 2019 WHO estimated that 99% of the world’s population breathed air above PM2.5 guideline limits, while air pollution was still tied to millions of premature and disease deaths and welfare losses worth about $5.1 trillion globally.
04 · Category
Investment & Policy9 stats
01
$2.6 trillion of sustainable finance mobilized globally in 2022 across bonds, loans, and other products was reported by the Global Sustainable Investment Alliance (GSIA) and market surveys
02
The EU’s Fit for 55 package sets a target to reduce net greenhouse gas emissions by 55% by 2030 compared with 1990 levels, as codified in EU legislation
03
The US Inflation Reduction Act provides about $369 billion for energy and climate spending over 10 years as estimated by the Congressional Budget Office cost estimate
04
$100 billion per year is the developed-country climate finance goal for mitigation and adaptation, as set in UNFCCC decisions and reiterated in UN climate finance materials
05
In 2022, climate finance provided and mobilized by developed countries totaled $89.6 billion according to OECD analysis summarized in the UNFCCC climate finance dashboard
06
The EU Carbon Border Adjustment Mechanism (CBAM) transitioned to reporting phase in 2023 and starts financial obligations in 2026, based on EU CBAM regulation
07
As of 2024, 198 countries and the EU are Parties to the Paris Agreement, per UNFCCC status of ratification
08
The number of nationally determined contributions submitted as of the end of 2024 was 193, according to UNFCCC NDC Registry counts
09
2030 EU renewables share target is 42.5% with an indicative 45% to be achieved, per the recast Renewable Energy Directive
Interpretation
Investment & Policy Interpretation
Investment and policy momentum is accelerating as seen in 2022 sustainable finance reaching $2.6 trillion globally alongside major government action like the EU’s 55% net emissions cut by 2030 and the US Inflation Reduction Act’s roughly $369 billion over 10 years, signaling that capital flows are increasingly being shaped by enforceable climate rules rather than voluntary commitments alone.
05 · Category
Climate Risks & Resilience6 stats
01
1.5 million heat-related deaths were estimated globally in 2019 due to extreme heat, based on the Lancet Countdown report’s health risk assessments
02
Approximately 10% of global flood risk is expected to be affected by sea-level rise by 2050 compared with baseline (depending on emissions pathway), as modeled by the OECD in its flood risk assessments
03
The fraction of global population exposed to at least one climate hazard increased by 26% between 2000 and 2019 in an analysis by the IPCC and related geospatial assessments summarized in IPCC AR6 WGII
04
The IPCC AR6 estimates that climate change has caused observable increases in heavy precipitation and drought in many regions, quantified in the report’s attribution chapters
05
Arctic sea ice extent in September in 2023 was about 760,000 sq km, near the annual minimum observed in NASA’s Cryosphere data
06
Global land degradation affects about 1.3 billion hectares of land (equivalent to about 25% of Earth’s land area) as reported by the UNCCD Global Land Outlook 2022
Interpretation
Climate Risks & Resilience Interpretation
Climate Risks and Resilience is already a growing global health and safety threat, with the share of people exposed to climate hazards rising 26% from 2000 to 2019 and extreme heat contributing an estimated 1.5 million deaths worldwide in 2019.
06 · Category
Market Size2 stats
01
6.1% of total final energy consumption came from electricity in 2022, with 1.6 percentage points of growth since 2012 (IEA data).
02
34.3% of global primary energy came from coal in 2022 (BP Statistical Review/energy mix compilation).
Interpretation
Market Size Interpretation
For market size in the environment sector, electricity’s share rose to 6.1% of final energy consumption in 2022, up 1.6 percentage points since 2012, while coal still dominates global primary energy at 34.3% in 2022, signaling both growing demand for electrification and the scale of the incumbent fossil market.
More related reading
07 · Category
Industry Trends3 stats
01
8.7% of global final energy consumption was supplied by renewables in 2022 (renewables share in final energy).
02
Wind and solar together provided 14.4% of global electricity generation in 2023 (share of generation).
03
90% of the global installed desalination capacity is in the Middle East and North Africa and select countries (capacity concentration share).
Interpretation
Industry Trends Interpretation
Under the Industry Trends angle, renewables are still expanding steadily with 8.7% of global final energy supplied by them in 2022 and wind plus solar reaching 14.4% of electricity generation in 2023, while desalination capacity remains highly concentrated with 90% installed across the Middle East and North Africa and select countries.
08 · Category
Material Flows2 stats
01
13% of plastic waste is recycled (global plastic waste recycling rate for plastics in OECD outlook material).
02
12.6% of global municipal solid waste (MSW) is recycled (global MSW recycling share).
Interpretation
Material Flows Interpretation
In material flows, only 13% of plastic waste is recycled and just 12.6% of global municipal solid waste is recycled, showing a persistent low recycling rate across key waste streams.
09 · Category
Waste & Pollution1 stats
01
6.4 million deaths in 2016 were attributable to air pollution from outdoor sources in the GBD study (outdoor air pollution deaths).
Interpretation
Waste & Pollution Interpretation
In the Waste and Pollution category, the Global Burden of Disease study attributes 6.4 million deaths in 2016 to outdoor air pollution, underscoring how deadly pollution impacts public health at massive scale.
10 · Category
Water & Land2 stats
01
34.6% of cropland is affected by soil degradation globally (global cropland degradation share).
02
1.9 billion hectares of land are degraded worldwide (land degradation extent estimate).
Interpretation
Water & Land Interpretation
Across the Water & Land landscape, about 34.6% of global cropland is affected by soil degradation, underscoring that roughly 1.9 billion hectares of land are already degraded worldwide.
11 · Category
Climate & Energy2 stats
01
51.9 gigatons of CO2 were emitted globally in 2023, including land-use change and fossil fuel combustion (global total CO2 emissions estimate).
02
7.2 ppm increase in atmospheric CO2 concentration from 2022 to 2023 (Mauna Loa annual mean growth).
Interpretation
Climate & Energy Interpretation
In the Climate and Energy arena, global CO2 emissions reached about 51.9 gigatons in 2023 and the atmospheric CO2 level rose by 7.2 ppm from 2022 to 2023, showing a clear and persistent upward trend in both emissions and atmospheric buildup.
Reference
Cite This Report
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APA
Aisha Okonkwo. (2026, February 13). Environment Statistics. Gitnux. https://gitnux.org/environment-statistics
MLA
Aisha Okonkwo. "Environment Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/environment-statistics.
Chicago
Aisha Okonkwo. 2026. "Environment Statistics." Gitnux. https://gitnux.org/environment-statistics.
Sources & references
39 datasets cited across this report · attribution is report-level
+18 additional datasets cited (not shown individually)