A child's explanation of global warming

Thanks to writer Jo Ostgarden of the Portland Tribune, for sending us this link. If you are having a hard time really understanding how global warming occurs or looking for ways to explain it to your own kids, then read this summary by 10-year old Drew McWhirter. There's nothing like a child's perspective and straightforwardness to make some complex subjects a little more palatable to us non-scientific types (sorry, Al).