2. What is Climate Change?
Climate change is one of the biggest crises facing humanity
Climate change is the catch- all for the shift in worldwide weather phenomena associated
with an increase in global average temperatures.
NASA define climate change as a broad range of global phenomena created
predominantly by burning fossil fuels, which add heat- trapping gases to Earth
atmosphere.
3. How do we know climate change?
SEA LEVEL RISE
GLOBAL TEMPERATURE RISE
WARMING OCEANS
SHRINKING ICE SHEETS
DECLINING ARCTIC SEA ICE
GLACIAL RETREAT
EXTREME EVENTS
OCEAN ACIDIFICATION
DECREASED SNOW COVER
4. SEA LEVEL RISE
Global sea level rose about 17 cm. (6.7 inches) in last
century. The rate in the last decade, however , is nearly
double that of the last century
5. GLOBAL TEMPERATURE RISE
All three major global surface temperature
reconstructions show that Earth has warmed since
1880