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• Global average temperature was 0.98°C (1.76 °F) higher in 2020 than in the late 1800s.15 • The warmest year on record since records began in 1880 was 2016, with 2020 ranking second. In 2020 global average land temperatures experienced a record high, while 2016 global ocean temperatures remain the highest on record.
Climate Change: Science and Impacts. The Earth’s Climate. The Earth’s Greenhouse Efect1. Climate change is altering temperature, precipitation, and sea levels, and will adversely impact human and natural systems, including water resources, human settlements and health, ecosystems, and biodiversity.
Lecture Notes. This section provides the schedule of lecture topics and instructors along with lecture notes for select sessions.
Climate change is altering temperature, precipitation, sea levels, and will adversely impact human and natural systems, including water resources, human settlements and health, ecosystems, and biodiversity. 1 The unprecedented acceleration of climate change over the last 50 years and the increasing confidence in global climate models add to the ...
Climate change science seeks to understand the physical, chemical, biological and geological processes, and the interactions among these processes, that produce climate. The scales of interest range from local to global and from weeks or months to millions of years. Changes in climate, both temporally and spatially,
Scientists know that recent climate change is largely caused by human activities from an understanding of basic physics, comparing observations with models, and fingerprinting the detailed patterns of climate change caused by different human and natural influences.
current understanding of global warming and climate change, as well as societal implications and the political barriers to sound, rational policy. Its co-authors are well recognized experts in science and in public policy.
