Thursday, February 11, 2010

WHAT IS GLOBAL WARMING?

"Global climate change" or "global warming" began with the Industrial Revolution.  Scientists say that global warming is primarily caused by the "greenhouse gas effect."  Greenhouse gases are the toxins (mostly CO2) released into the air when we burn fossil fuels--oil, coal and natural gas.  Another contributor to global climate change is deforestation (the destruction of trees), illustrated in the photograph below.

During the Industrial Revolution, lots of amazing new technology came along and we've been inventing cool things ever since!  But all this new technology--things like trains, cars, lightbulbs, computers, airplanes and electric toothbrushes--need energy to make them go!  The energy we use to power our cars and our homes comes mostly from burning fossil fuels.  It took millions of years for fossil fuels to be created, but humans have burned much of them up in just a few hundred years and the Earth can't handle it!

The more CO2 we have in the air, the more oceans try to suck it up to balance it out.  The more CO2 the oceans suck up, the warmer they become.  The warmer the oceans become, the more strange weather and wacky temperatures we get!  Strange weather leads to dangerous situations for humans.  Wacky temperature changes leads to the inability of many species of plants and animals to adapt quickly enough, which can lead to extinction.

On land, trees are an amazing natural way to get rid of CO2.  Plants soak up CO2 and store it for energy.  The combination of the greenhouse effect and deforestation has created a problem twice the size!

Obvious solutions:  1) PLANT TREES!  2) STOP BURNING FOSSIL FUELS!

More on global climate change to come!

3 comments:

  1. Planting trees is a great step, but it's really hard to reduce the amount of oil I use. I mean, I try and avoid driving if I can, but I work so far away from home, so I'm always on the road.

    ReplyDelete
  2. Thanks for the comments guys! Yes, it can be very difficult to avoid filling up our cars with gas - we use them all the time! But awareness is also a huge step! When it's time to buy a new car, we need to make a stand and purchase vehicles that are more fuel efficient or that run on green energy.

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