2. Global warming has become perhaps the most
complicated issue facing world nowadays.
3. What is Global Warming?
?
The Planet Is Heating Up — and Fast
4. What is Global Warming?
The earth heats up (the temperature rises )=> It
happens when greenhouse gases (carbon
dioxide, water vapor, nitrous oxide, and
methane) trap heat and light from the sun in the
earth’s atmosphere, which increases the
temperature. This affects many people, animals,
and plants.
5. What is the effect of global warming to
the environment?