Not to be the bearer of bad news

...but I just learned something alarming in class today. We're studying biodiversity currently, and my professor told us that it is generally expected that we are going to lose half of all the species on the earth in the next 100 years. Its estimated that we've already lost 5-20% of species already.

There have been 5 major extinctions in the entire history of life on earth, the last one being the extinction of the dinosaurs. We are currently living through the 6th major extinction on earth.

For more information, take a look at the 4th issue of: www.esa.org/science/Issues

This stuff can be pretty depressing, and I'm usually pretty good at staying optimistic...but its hard to see the hope/silver lining in this one...