Scientific Evidence of Climate Change
Kevin Trenberth
Former Coordinating Lead Author of the IPCC
In this video, Kevin explains how global warming has been observed and measured from a scientific perspective. He looks at rising global temperatures caused by rising CO2 levels and how Earth’s energy imbalance has risen over time, and also outlines the consequences of the EEI always being a positive number. He then explains how global warming has been observed through rising ocean temperatures and sea levels. Finally, he finishes by talking about how global warming has been observed through changes in the land and ice around the world.
In this video, Kevin explains how global warming has been observed and measured from a scientific perspective. He looks at rising global temperatures caused by rising CO2 levels and how Earth’s energy imbalance has risen over time, and also outlines the consequences of the EEI always being a positive number. He then explains how global warming has been observed through rising ocean temperatures and sea levels. Finally, he finishes by talking about how global warming has been observed through changes in the land and ice around the world.
Scientific Evidence of Climate Change
21 mins 53 secs
The observational evidence proving global warming is mounting and extremely visible. Every year seems to be record-breaking, with the ocean found to be at its warmest state ever. Land and sea ice is melting, and heatwaves and wildfires are a consequence on land. Ironically, both droughts and heavy rains, with their associated flooding risk, are increasing too. Carbon dioxide levels are at all time highs, the energy imbalance is rising, seas are warming and rising, and there has been significant changes in the land and ice.
Key learning objectives:
Outline how global temperatures, Earth’s energy imbalance and CO2 levels have risen
Outline how global warming has been observed through changing oceans, land and ice
Kevin Trenberth
18:57
19:41
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