This page contains evidence of global warming and climate change. The goal is to provide a repository of links for anyone looking for clear evidence that global warming is happening and that humans are causing it. It consists primarily of direct measurements of temperature change, causes of that change, and effects of that change. It does not focus on the impact of those or how significant they are. Those can be found here.
| NASA | 2016 was ~1.8 degrees (F) warmer than the middle (1950) of the 20th century. |
| Berkeley Earth | Temperatures are ~2.7 degrees (F) higher recently than 250 years ago. |
| NOAA | 2016 was ~1.7 degrees (F) warmer than 20th century average. |
| Hadley Center | 2015 was ~1.5 degrees (F) warmer than the late (1975) 20th century. |
| Japanese Metrological Agency | 2016 was ~0.8 degrees (F) warmer than the end of the 20th century (1995). |
| Australian Bureau of Meteorology | 2016 was ~1.4 degrees (F) warmer than the late 20th century (1975). |
| PAGES2k Initiative | Proxies show that this period has the highest temperatures of any period in the last 2000 years. |
| Various | Article comparing multiple temperature sources and isolating the long-term warming trend |
| NASA | Visualization comparing all causes for temperature rise. |
| Remote Sensing Systems | Temperatures are rising in the lower atmosphere and falling in the upper atmosphere. |
| NOAA | CO2 levels are rising. |
| EPA | Other greenhouse gas levels are also rising. |
| Berkeley Lab | The carbon in the atmosphere is warming the Earth. |
| NOAA | Carbon levels in the ocean are also rising. |
| EPA | We know humans are emitting a lot of greenhouse gases. |
| Imperial College | A lot of old carbon is being added to the atmosphere indicating that it is lingering from fossil fuel usage. |
| Skeptical Science | Nice summary of various sources indicating global warming is caused by human activity |
| NOAA | Sea level is rising about one-eight of an inch per year due to thermal expansion and melting land ice. |
| NASA | Sea level rose ~8 inches between 1870 and 2000. |
| NASA | Greenland and Antarctica are losing ~400 Gigatonnes per year of land ice. |
| NOAA | We are steadily losing sea ice. |
| Rutgers University | Snow is melting earlier in the spring. |
| ARC | Coral is bleaching from warm temperatures and ocean acidification. |
| NOAA | Glaciers around the world are losing mass. |
