Question

Explain Global Warming:

1. The science behind the greenhouse effect 2. The causes of global warming 3. The evidence and effects of global warming

Answer 1

1) greenhouse gases like carbon dioxide water vapor methane are transparent to short wavelength radiation coming from the sun, and this radiation heats up the earth surface and re-radiate long-wavelength radiations and the greenhouse gases are opaque to this wavelength or they do not allow this radiation to pass through and act as a blanket over the earth and increase the temperature.

2) a major source of carbon dioxide is the burning of fossil fuels, as the amount of greenhouse gases increases in the atmosphere the heat traps will also increase and that warm the earth.

3) sea surface temperature is increasing and the Islands in pacific oceans are in threat of sea-level rise caused by both thermal expansion and melting of glacial ice.