Responses

Yes. Human activities are the dominant cause of the warming observed since the mid-20th century. Key evidence: - Greenhouse gases: CO2 has risen about 50% since preindustrial times and methane has more than doubled, primarily from burning fossil fuels, deforestation, and industry. Their heat-trapping effect is well measured. - Fingerprints: The pattern of change matches greenhouse warming—troposp

Yes. The overwhelming scientific consensus is that humans are the primary cause of the warming observed since the mid-20th century. Key evidence: - Greenhouse gases: CO2, methane, and nitrous oxide from burning fossil fuels, deforestation, and industry have risen to levels not seen in at least 800,000 years. - Fingerprints of human influence: The pattern of warming (troposphere warming while the

Yes. The recent warming of Earth—about 1.1°C since the late 1800s—is overwhelmingly caused by human activities, mainly the release of greenhouse gases from burning fossil fuels, deforestation, and agriculture. Key evidence: - Greenhouse gases have surged: CO2 rose from ~280 ppm pre‑industrial to ~420 ppm today. The carbon isotope fingerprint and a measured drop in atmospheric oxygen show the extr

Yes. The overwhelming scientific consensus is that humans are the primary cause of the global warming observed since the mid‑20th century. Why scientists are confident: - Greenhouse gases from human activities have surged: CO2 has risen from ~280 ppm pre‑industrial to over 420 ppm today, with methane and nitrous oxide also sharply up. These gases trap heat. - Energy balance: The best estimate of

Yes. The scientific consensus is that humans are the primary cause of the warming observed since the mid‑20th century. Key points: - Greenhouse gases: CO2, methane, and nitrous oxide have risen sharply from burning fossil fuels, deforestation, agriculture, and industry. CO2 is now about 420 ppm, up from ~280 ppm pre‑industrial. - Fingerprints: The pattern of warming matches greenhouse gas forcing

Yes. The overwhelming scientific consensus is that humans are the primary cause of recent global warming. What’s driving it - Burning fossil fuels, deforestation, and some agricultural/industrial practices increase greenhouse gases (CO2, methane, nitrous oxide). Aerosols from pollution offset a bit of this, but the net effect is strong warming. Key evidence - Greenhouse gases are at their highes