Greenhouse Effect & Global Warming:
Evidence for Global Warming:
The average global temperature has risen about 0.50C in the last century, and scientists expect another increase of 1 to 40C in the next 100 years due to increasing pollution in our atmosphere.
Greenhouse Effect:
- Greenhouse gases allow the passage of incoming solar short-wavelength radiation but absorb some of the reflected infrared radiation and reradiate it back to the Earth’s surface.
- Energy is then reradiated in the lower atmosphere causing an increase in temperature and climatic change. Hence, contributing to global warming.