CAUSES

Thanks to the greenhouse effect, Earth is a thriving place; unlike Mars, which is pretty much frozen and dead. But when the level of greenhouse gases in our atmosphere becomes so high that the planet shows signs of overcooking, we know there’s a serious problem.

THE PROBLEM

• We burn fossil fuels such as coal, oil, and natural gas
  to generate electricity. 

• Transportation - cars, trucks, aviation - requires fuel. The fuel
  burned emits greenhouse gases.

• Industrial practices—like the Alberta tar sands—pump out
  serious greenhouse gases.

• We're losing the world's forests at an ever-increasing rate.
  Forests play a key role in moderating the earth's climate.

• Modern-day agriculture contributes to deforestation while
  emitting massive amounts of greenhouse gases.

Take a look, and see how those factors snowball into a whole heap of other causes...