These two pages are still up and quite easy to find: https://www.epa.gov/climate-indicators https://www.epa.gov/climate-indicators https://www.epa.gov/ghgemis

These two pages are still up and quite easy to find: https://www.epa.gov/climate-indicators https://www.epa.gov/climate-indicators https://www.epa.gov/ghgemissions https://www.epa.gov/ghgemissions The first page contains this quote - "Many of these observed changes are linked to the rising levels of carbon dioxide and other greenhouse gases in our atmosphere, caused by human activities."