1. GLOBAL WARMING
Global warming is the rise in the average
temperature of Earth's atmosphere and
oceans since the late 19th century and its
projected continuation. Since the early
20th century, Earth's mean surface
temperature has increased by about 0.8
°C (1.4 °F), with about two-thirds of the
increase occurring since 1980.

2. CAUSES
The Earth's atmosphere is composed of many gases.
Most abundant are the nitrogen and oxygen. Other
gases are called "greenhouse".

4. Because of pollution of the atmosphere, the gases retaine
too many heat from the Sun, near to the surface.
Temperatures around the world have increased in the last
century, and this could cause global climate change.

5. CONSECUENSES
 Increase in average global temperature.
 Increased drought in some areas and flooding in others.
 Increased frequency of hurricane formation.
 Progressive melting of the polar ice caps, resulting in rising
sea levels.
 Increased precipitation on a global level but fewer days and
more rain in torrents.
 Increased number of hot days, resulted in heat waves.

8. To prevent climate change should reduce
greenhouse gas emissions, reducing the amount of
fossil fuel used (oil, natural gas, coal), and protect
forests (they catch and consume carbon dioxide). It
also means reduce our energy consumption, and
look for other energy sources that do not produce
greenhouse gases
(solar, wind, water or ocean waves).