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Organisation that seeks to quantify global greenhouse gas emissions and their causes
Global carbon dioxide (CO2) emissions from fossil fuels are projected to reach a record 38.1 billion tonnes in 2025, a 1.1% increase over 2024, and fossil combustion continues to account for roughly n...
Global CO2 emissions from fossil fuels and cement are projected to hit record highs in 2025 — roughly 38.1 Gt CO2 in some estimates — after rising about 1.1% in 2025 and 0.8% in 2024, according to the...
Combined emissions for the world’s largest emitters vary by dataset and year, but multiple sources show the top 10 emitters account for a large majority of global CO2: China alone emitted about 13.3 G...
China remains by far the world’s largest annual greenhouse‑gas emitter, accounting for roughly one‑third of global emissions and emitting an estimated 15.1–15.2 GtCO2e in 2025 according to Climate Act...
Fossil fuels and cement accounted for about 38.1 billion tonnes CO2 (≈90%) of total CO2 emissions in 2025, while land‑use change contributed roughly 4.1 billion tonnes CO2 (≈10%), giving total anthrop...
Greenhouse gas (GHG) emissions—from CO2, methane, nitrous oxide and fluorinated gases—trap extra heat in the Earth system by increasing atmospheric concentrations and changing the planet’s energy bala...
China’s CO2 and broader GHG emissions have shown a recent pause: multiple analyses report emissions were “flat or falling” for 18 months through Q3 2025, with some estimates finding 2025 emissions ess...
Scientists separate human from natural CO2 by combining isotope measurements — primarily δ13C and Δ14C — with global carbon-budget accounting; the isotopic “fingerprints” of fossil carbon (depleted in...
Global fossil-fuel CO2 emissions are projected to hit a record high in 2025 at roughly 38.1 billion tonnes, a 1.1% rise driven by coal, gas and oil, while land‑use emissions have eased and at least 35...
The scientific consensus is that the Earth is warming and the dominant cause is human emissions of greenhouse gases—primarily carbon dioxide from burning oil, gas and coal and from cement manufacture—...
Climate change — specifically long-term global warming driven largely by greenhouse gas emissions — is treated as an active, serious problem across international institutions, scientific reporting and...
Global surface temperatures are running near record highs, with a high probability that at least one year between 2025–2029 will exceed 1.5°C above pre‑industrial levels and the 2025–2029 five‑year av...
Carbon — chiefly in the form of carbon dioxide (CO2) — is central to Earth’s climate and ecosystems because natural “sinks” in oceans and land absorb roughly half of human CO2 emissions, moderating wa...
Global fossil-fuel CO2 emissions are projected to rise to a record in 2025, up about 1.1% and reaching roughly 38.1–42.2 billion tonnes depending on the dataset, while at least 35 countries show measu...