Page 12 - Environmental_Climat change
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Chapter 3 Evidence for rapid climat
change
3.1 Global temperature rise
Increased emissions of carbon dioxide and other greenhouse gases into the atmosphere are increasing the
average temperature of the planet. The sharp rise is mainly due to human activity. Today we are
witnessing dynamic climate change. The picture below shows how the temperature has changed over the
last 50 years.
S o u r c e : NASA
3.2 Warming oceans
Increased temperatures also have an effect on warming the oceans. This is because the oceans absorb
part of the increased heat. Below is a picture of how the oceans have warmed up over the last 6 decades
(Levitus,S et all, 2017).
