Question

How much are global surface temperatures expected to increase by the year 2100 if countries come together to use both technology and general environmental controls to decrease emissions?

a) 1-2°C
b) 2-3°C
c) 3-4°C
d) 4-5°C

Answer 1

The mean global surface temperature is likely to rise by 0.3-4.8 degrees C (0.5-8.6 degrees F) by 2100, depending on future greenhouse gas emissions. Warming will be greater over land than over the ocean and greater in the Arctic than anywhere else on Earth.

Step-by-step explanation:

Depending on assumptions about future greenhouse gas emissions, climate models predict that the mean global surface temperature is likely to rise by 0.3-4.8 degrees C (0.5-8.6 degrees F) by 2100. This range takes into account the use of technology and general environmental controls to decrease emissions. It is important to note that future climate change is predicted to differ from region to region around the globe, with warming being greater over land than over the ocean and greater in the Arctic than anywhere else on Earth.