Climate change is one of the biggest crises facing humanity and is defined as a shift in worldwide weather patterns associated with rising global temperatures, predominantly caused by burning fossil fuels which release heat-trapping gases. Some of the evidence of climate change includes rising sea levels and global temperatures, warming oceans, shrinking ice sheets, declining Arctic sea ice, retreating glaciers, more extreme weather events, and increased ocean acidification. Many indicators, such as rising sea levels, temperatures, and ocean warming, show the effects of climate change are already occurring.

1. Climate
Chang
By maica manucduc

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

6. WARMING OCEANS
the oceans have absorbed much of this increased
heat.

7. SHRINKING ICE SHEETS
The Greenland and Antarctic ice
sheets have decreased in mass.

8. DECLINING ARCTIC SEA ICE
both the extent and thickness of
arctic sea ice has declined rapidly over
the last several decades

9. GLACIAL RETREAT
glaciers are retreating almost
everywhere around the world .

10. OCEAN ACIDIFICATION
sine the beginning of the industrial revolution,
the acidity of surface ocean waters has increased
by about 30 percent.

11. EXTREME EVENTS
the number of record high
temperature events.

12. DECREASED SNOW COVER
satellite observations reveal that the amount of
spring snow covering the Northern Hemisphere