Research has shown that air
pollutants from fossil fuel use make clouds reflect more of the sun’s rays back
into space.
This leads to an effect known as global dimming whereby less heat
and energy reaches the earth.
At first, it sounds like an ironic saviour to
climate change problems.
However, it is believed that global dimming caused the
droughts in Ethiopia in the 1970s and 80s where millions died, because the
northern hemisphere oceans were not warm enough to allow rain formation.
Global
dimming is also hiding the true power of global warming.
By cleaning up global
dimming-causing pollutants without tackling greenhouse gas emissions, rapid
warming has been observed, and various human health and ecological disasters
have resulted, as witnessed during the European heat wave in 2003, which saw
thousands of people die.