2. A gradual increase in the overall temperature of
earth’s atmosphere generally attributed to the
green house effect caused by increased levels of
carbon dioxide, CFCs, and other pollutants.
TEN INDICATORS OF GLOBAL WARMING: -
3. Increase in concentration of carbon
dioxide
Fossil fuels such as gasoline , methane
and propane contain mostly carbon.,
When these fuels are burned they react
with oxygen and produce carbon
dioxide.
Deforestation
4. Increase in methane gas
Aerosols present in atmosphere