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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. Evidence and Causes: Update 2020. (2020) Download Free PDF. Read Free Online. Buy Paperback (pack of 5): $5.00. Climate change is one of the defining issues of our time. It is now more certain than ever, based on many lines of evidence, that humans are changing Earth's climate.
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,
It explains how scientiûc and policy debates work, outlines the scientiûc evidence for the reality and seriousness of climate change and the basic atmospheric science that supports it, and discusses policy options and the current state of the policy debate.
ocean circulation and SST forcing can be in influencing the global temperature. At the same time, it is clear that greenhouse gas forcings have been important but that shifts in vegeta-tion, and feedbacks in albedo and the carbon cycle from those vegetational shifts can also be important.
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.
25 Νοε 2020 · This section outlines the well-understood science that goes back to the 1800s, presenting local and global evidence that our climate is warming due to human activities. Serious. More extreme...
