Global Warming:
Global warming is the term used to

describe a gradual increase in the average

temperature of the Earth’s atmosphere

and its oceans, a change that is believed

to be permanently changing the Earth’s

climate. There is great debate among

many people, and sometimes in the news,

on whether global warming is real (some

call it a hoax). But climate scientists

looking at the data and facts agree the

planet is warming. While many view the

effects of global warming to be more

substantial and more rapidly occurring

than others do, the scientific consensus

on climatic changes related to global

warming is that the average temperature

of the Earth has risen between 0.4 and

0.8 °C over the past 100 years. The

increased volumes of carbon dioxide and

other greenhouse gases released by the

burning of fossil fuels, land clearing,

agriculture, and other human activities,

are believed to be the primary sources of

the global warming that has occurred over

the past 50 years. Scientists from the

Intergovernmental Panel on Climate

carrying out global warming research

have recently predicted that average

global temperatures could increase

between 1.4 and 5.8 °C by the year 2100.

Changes resulting from global warming

may include rising sea levels due to the

melting of the polar ice caps, as well as

an increase in occurrence and severity of

storms and other severe weather events.