Sustainability progress can look paradoxical because cutting emissions depends on sectors that are sometimes overlooked. For example, food systems alone account for 13.5% of global greenhouse gas emissions, yet the same climate challenge also demands sharp, economy wide cuts like a CO2 decline of about 45% from 2010 levels by 2030 to stay on a 1.5°C pathway. This post pulls together the clearest 2020s figures across energy, waste, water, finance, and biodiversity to show where momentum is building and where it is still slipping.
Key Takeaways
- 13.5% of global greenhouse gas emissions are linked to food systems (IPCC AR6 WG3 synthesis of food emissions share)
- 61% of food waste comes from households, in developing countries (UNEP Food Waste Index 2021)
- $295 billion annual cost of food loss and waste globally (FAO/UNEP-reported)
- 1.5°C pathway requires global CO2 emissions to fall about 45% from 2010 levels by 2030
- 33.3% of global warming is currently attributable to CO2 from fossil fuels and industry in historical estimates used in AR6 synthesis
- 1,000+ organizations committed to the Science Based Targets initiative (SBTi) across multiple target-setting categories as of recent public SBTi statistics
- US EPA estimates methane accounts for 10% of U.S. greenhouse gas emissions and is 84 times more potent than CO2 over 20 years (EPA national inventory characterization)
- $1.0 trillion green bond issuance was reported globally in 2023 (IEA/IFR-related reporting uses market data)
- $166 billion global clean energy investment in 2022 was reported as total clean energy investment by the International Energy Agency (IEA)
- $17.5 billion global investment in climate tech in 2022 (IEA/industry reporting consolidated)
- 1,000 TWh additional renewable capacity required annually for net zero pathways (IEA net zero by 2050 capacity needs)
- 11.6% of global final energy consumption came from renewables in 2021 (IRENA estimates)
- 3,064 TWh renewable electricity generated globally in 2021 (Ember data)
- 79% of surveyed consumers in 2021 said they would pay more for sustainable products (IBM consumer sentiment data)
- $0.035/kWh median levelized cost of electricity from utility-scale solar PV in some regions (IRENA 2021 cost report)
Food, energy, and waste must cut emissions fast while renewables, climate investment, and targets scale globally.
Related reading
01 · Category
Food Systems3 stats
01
13.5% of global greenhouse gas emissions are linked to food systems (IPCC AR6 WG3 synthesis of food emissions share)
02
61% of food waste comes from households, in developing countries (UNEP Food Waste Index 2021)
03
$295 billion annual cost of food loss and waste globally (FAO/UNEP-reported)
Interpretation
Food Systems Interpretation
Food systems are a major driver of climate impact and inefficiency, with 13.5% of global greenhouse gas emissions linked to them and 61% of food waste coming from households in developing countries, alongside $295 billion in annual global losses and waste.
02 · Category
Emissions & Targets2 stats
01
1.5°C pathway requires global CO2 emissions to fall about 45% from 2010 levels by 2030
02
33.3% of global warming is currently attributable to CO2 from fossil fuels and industry in historical estimates used in AR6 synthesis
Interpretation
Emissions & Targets Interpretation
Within the Emissions & Targets lens, achieving a 1.5°C pathway means cutting global CO2 emissions about 45% from 2010 levels by 2030, especially since CO2 from fossil fuels and industry accounts for 33.3% of today’s global warming.
03 · Category
Policy & Regulation2 stats
01
1,000+ organizations committed to the Science Based Targets initiative (SBTi) across multiple target-setting categories as of recent public SBTi statistics
02
US EPA estimates methane accounts for 10% of U.S. greenhouse gas emissions and is 84 times more potent than CO2 over 20 years (EPA national inventory characterization)
Interpretation
Policy & Regulation Interpretation
From a Policy & Regulation angle, momentum is building as 1,000-plus organizations have committed to SBTi targets, while the US EPA’s estimate that methane drives 10% of U.S. greenhouse gases and is 84 times more potent than CO2 over 20 years strengthens the case for tighter regulatory action on emissions.
04 · Category
Investment & Finance3 stats
01
$1.0 trillion green bond issuance was reported globally in 2023 (IEA/IFR-related reporting uses market data)
02
$166 billion global clean energy investment in 2022 was reported as total clean energy investment by the International Energy Agency (IEA)
03
$17.5 billion global investment in climate tech in 2022 (IEA/industry reporting consolidated)
Interpretation
Investment & Finance Interpretation
In Investment and Finance, global climate capital is scaling up fast, with clean energy investment reaching $166 billion in 2022 and climate tech drawing $17.5 billion the same year, while green bond issuance climbed to $1.0 trillion in 2023.
05 · Category
Renewables & Energy7 stats
01
1,000 TWh additional renewable capacity required annually for net zero pathways (IEA net zero by 2050 capacity needs)
02
11.6% of global final energy consumption came from renewables in 2021 (IRENA estimates)
03
3,064 TWh renewable electricity generated globally in 2021 (Ember data)
04
29% of global electricity generation in 2021 came from renewable energy (excluding hydro) per Ember Global Electricity Review data
05
1.3% annual average growth in global solar PV capacity additions in 2020-2021 period (IRENA / REN21 reporting)
06
2,300 TWh electricity generated from hydropower globally in 2022 (IEA Electricity 2023/IEA data)
07
20.4% of global primary energy came from renewables in 2021 (IEA World Energy Balances / renewables share)
Interpretation
Renewables & Energy Interpretation
For the Renewables & Energy category, the gap is clear: renewables already supplied 11.6% of global final energy in 2021 and produced 3,064 TWh of renewable electricity, but net zero pathways still call for an additional 1,000 TWh of renewable capacity every year.
06 · Category
Adoption & Behavior1 stats
01
79% of surveyed consumers in 2021 said they would pay more for sustainable products (IBM consumer sentiment data)
Interpretation
Adoption & Behavior Interpretation
In 2021, 79% of surveyed consumers said they would pay more for sustainable products, showing strong demand and positive behavior toward adopting sustainability.
07 · Category
Cost Analysis4 stats
01
$0.035/kWh median levelized cost of electricity from utility-scale solar PV in some regions (IRENA 2021 cost report)
02
$0.038/kWh median LCOE for onshore wind in some regions (IRENA cost data)
03
$132/kWh average battery pack price in 2021 per BloombergNEF battery price survey
04
-55% drop in offshore wind costs between 2010 and 2020 in Europe (OWC trends summarized in IEA or IRENA cost reports)
Interpretation
Cost Analysis Interpretation
For the Cost Analysis side of sustainability, renewables have become dramatically cheaper with median LCOEs around $0.035 per kWh for utility scale solar PV and $0.038 per kWh for onshore wind while battery pack prices fell to an average of $132 per kWh in 2021 and offshore wind costs dropped by 55% in Europe from 2010 to 2020.
More related reading
08 · Category
Carbon Markets & Offsets1 stats
01
$2.2 billion total value of voluntary carbon markets in 2021 (Ecosystem Marketplace report)
Interpretation
Carbon Markets & Offsets Interpretation
In 2021, voluntary carbon markets reached $2.2 billion in total value, underscoring that Carbon Markets & Offsets are already a meaningful, fast-growing mechanism for funding emissions reductions.
09 · Category
Waste & Circularity4 stats
01
10.4% reduction in municipal solid waste generated per capita in some OECD countries (OECD waste generation indicators show declines in certain years)
02
9% of plastic waste was recycled globally in 2019 (OECD/UNEP baseline)
03
17% of municipal solid waste was landfilled in the EU in 2020 (Eurostat dataset)
04
25.7% of plastics packaging in the EU was recycled in 2020 (Eurostat packaging waste statistics)
Interpretation
Waste & Circularity Interpretation
For the Waste and Circularity category, progress is evident but uneven as municipal solid waste landfilling still accounted for 17% of EU waste in 2020 while plastic recycling reached 25.7% for EU packaging in 2020 and only 9% of plastic waste was recycled globally in 2019.
10 · Category
Land & Biodiversity2 stats
01
1 million species threatened with extinction according to IPBES (global estimate)
02
1.7 billion hectares of forest have been lost globally since the start of human civilization (FAO FRA / historical analysis)
Interpretation
Land & Biodiversity Interpretation
Land and biodiversity are under severe strain, with IPBES warning that 1 million species are threatened with extinction and FAO estimating that 1.7 billion hectares of forest have already been lost since the start of human civilization.
11 · Category
Water & Efficiency3 stats
01
2.2 billion people lack safely managed drinking water services (WHO/UNICEF JMP)
02
2.0 billion people lack safely managed sanitation services (WHO/UNICEF JMP)
03
10% of total global energy is used for water supply and wastewater treatment (IWA / World Bank reporting in WDR)
Interpretation
Water & Efficiency Interpretation
In the Water & Efficiency category, 2.2 billion people still lack safely managed drinking water and 2.0 billion lack safely managed sanitation, while energy use shows how efficiency matters because 10% of global energy goes to water supply and wastewater treatment.
12 · Category
Grid & Efficiency3 stats
01
Demand response contributed 30 GW of capacity in the US in 2023 (FERC/industry tracking)
02
48% of global energy efficiency improvements since 2000 come from efficiency policies (IEA tracking)
03
3.1% global final energy intensity improvement in 2022 (IEA)
Interpretation
Grid & Efficiency Interpretation
For the Grid & Efficiency category, the picture is that flexibility and better use of energy are scaling fast, with demand response reaching 30 GW of US capacity in 2023 and 48% of the world’s energy efficiency gains since 2000 coming from efficiency policies, alongside a 3.1% improvement in global final energy intensity in 2022.
13 · Category
Market Size5 stats
01
$1.7 trillion global investment required in critical minerals supply by 2030 for clean energy transitions (IEA critical minerals report)
02
$29 billion global investment in hydrogen in 2020 (IEA hydrogen report; investment tracking)
03
$130 billion global market for green bonds/ESG debt in 2021 (industry market sizing in credible report)
04
$2.5 trillion expected global ESG software market by 2028 (vendor research)
05
$4.6 billion market size for carbon capture and storage in 2022 (IEA CCUS market numbers in reputable sources)
Interpretation
Market Size Interpretation
For the market size angle, the scale of sustainability investment is already enormous and only growing, from $1.7 trillion in critical minerals needed by 2030 and $130 billion in green bonds in 2021 to a projected $2.5 trillion ESG software market by 2028.
Reference
Cite This Report
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APA
Lukas Bauer. (2026, February 13). Sustainability Statistics. Gitnux. https://gitnux.org/sustainability-statistics
MLA
Lukas Bauer. "Sustainability Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/sustainability-statistics.
Chicago
Lukas Bauer. 2026. "Sustainability Statistics." Gitnux. https://gitnux.org/sustainability-statistics.
Sources & references
40 datasets cited across this report · attribution is report-level
+20 additional datasets cited (not shown individually)