Peer reviewed annotated sources

Biodiversity

"Climate change, species–area curves and the extinction crisis — Philosophical Transactions B ." The Royal Society. N.p., n.d. Web. 26 Feb. 2010. .

"By 2050, doom 15–37% of the earth's species to extinction".

That's scary, up to 37% of earth's species can be extinct by 2050. This peer reviewed source focuses on an article written in January 2004 that focuses on Earth species becoming extinct, Extinction crisis. It's said that habitat change and modification are what's causing extinction. This source includes information about the SAR (Species–Area Relationship) Method and how it relates to climate change, causes of extinction, and suggestions he has about ecologist. Mostly includes a lot of information about the SAR method and it's application, if it's reliable.

"University of California Press - Error." University of California Press - Error. N.p., n.d. Web. 26 Feb. 2010. .

"(1) models that consider species individually, (2) niche-theory models that group species by habitat (more specifically, by environmental conditions under which a species can persist or does persist), (3) general circulation models and coupled ocean–atmosphere–biosphere models, and (4) species–area curve models that consider all species or large aggregates of species."

These four forecasting methods are discussed in the article. In this article they mainly focus on the forecast and how it is affecting different kinds of species. Since the forecast is considered one of the effects of Global Warming. It is said that although we had an ice age very few species actually became extinct, so this article claims to clarify that and give more accurate and reliable forecasting.

A great map that describes where and what kinds of species are being affected.





















Source
"Animals Under Siege - TIME." Breaking News, Analysis, Politics, Blogs, News Photos, Video, Tech Reviews - TIME.com. N.p., n.d. Web. 26 Feb. 2010. ."

Some major environmental issues that are included in this map are, climate change, overpopulation, and deforestation.

"From 1990 to 2005, the world lost 172 million acres of forest"

By participating in deforestation and cutting down thousands of trees effects the species and habitats living around it. So by cutting down trees we are slowly killing species and many habitats.

"The warming of the planet could put as much as 70% of species at a greater risk of extincction-with Artic animals like the polar bear potentially among the first to go".

We wonder what will happen if the polar bear does go extinct? How bad can it possibly be?But all animals have a role in the ecosystem, all are important. I believe it would not have a sudden affect but it would eventually disrupt the food chain, which would eventually lead to greater issues.