Rise in CO2 Levels
Global Warming has always been something to argue about. Some people believe, most disbelieve. However, there's no denying the rise of CO2 levels in the atmosphere.
Before the Industrial Revolution, there was about 220 ppm's of CO2 in the atmosphere. PPM is short for pounds per million. Since then, it has steadily risen without much attention from the people. All the way up to 400 ppm. Of course there has been some scientists here and there that have argued CO2 levels are rising at an unsafe rate.
Volcano's spew out 50 million pounds of CO2 into the atmosphere each year. We, however, release 36 BILLION pounds every year. Luckily there doesn't seem to be much of an increase in temperature at all.