The rise in temperature around the Earth over the last fifty years is only around on-degree on average. If we are just raising the temperature a little bit why does it matter? Surely a person in Maine for the winter doesn’t mind if it is 40 degrees out instead of 39. And a person in Florida won’t notice the difference between 89 and 90. That is true, but Nature seems to be more bothered by this extra heat than the plants and animals nature supports. Global warming is melting the North and South poles; it is creating floods in some areas and deserts in others. While people can move from one location to another if it becomes too hot or cold, most animals cannot. So creatures such as Polar Bears are threatened with extinction. There are thousands of animal and plant species put at risk by global warming.
Global warming is also believed to be responsible for recent changes in our weather. There are more hurricanes in the northern hemisphere every year than ever before. And these hurricanes are more powerful than the ones from 50 years ago. Rising oceans, increased rainfall, loss of fresh water and dozens of other problems are on the rise and the cause is global warming.
Some of the easiest things we can do to reduce harmful greenhouse gas emissions is to make cars that use less gas and expel fewer pollutants. If a car or truck only gets 25 miles per gallon of gasoline used and we double the mileage we will cut in half the amount of Carbon dioxide that is released to the air.
There is another thing we can do that will cut down on power usage and as a result of that reduce CO2 released as we burn fuel to make electricity. Fully 30%, almost a third, of our Carbon dioxide excess is the result of needing electricity to cool and heat our homes. This plus the power needed for appliances, hot water and things like televisions creates a never-ending need for power. And that power means more greenhouse gas. Houses and buildings and the things we use inside of them require the consumption of as much power as do cars and trucks. But we can quickly cut that power usage in half by building energy efficient “green” homes and buildings.
We can build appliances that use less electricity. And we can develop heating and lighting sources that use one fourth of the power we now use to warm cool and light our buildings.

