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The average surface temperature of earth has increased more than 1 degree Fahrenheit since 1900 and the rate of warming has been nearly three times the century-long average since 1970. Almost all experts studying the recent climate history of the earth agree now that human activities, mainly the release of heat-trapping gases from smokestacks, tailpipes, and burning forests, are probably the dominant force driving the trend.

Predator plants may cut back on flies if they can access key nutrients elsewhere, according to research. Scientists studying carnivorous sundew plants in Swedish bogs found that nitrogen deposition from rain reduced how many insects the plants trapped. Pollution from transport and industry causes nitrogen-rich rain, meaning more reaches the ground in some areas.

usa.gov

In the 30-year battle waged since the initiation of the "war on cancer," there have been substantial victories, with cures for childhood malignancies among the most important. Our ever-expanding understanding of cellular and molecular biology has provided substantial insights into the molecular underpinnings of the spectrum of diseases we call cancer.

Each year, approximately 8,000 Americans are bitten by venomous snakes. On average, 800 or so bites occur annually in California, home to an abundance of snake species, but only one family is native with highly toxic venom: rattlesnakes. In San Diego County, the number of rattlesnake bites is increasing as well as the toxicity of the attack.

Story about supernova's and their second faces

I would like to use this site as one of my sources. I believe that this site will help with story because it gives the science behind urine's sterility. In addition to this the site supports this through historical facts.

Oh on, we are screwed.

this article talks about how it has been said that people that are homosexual are born that way. it does not give much information but it has a start

Wow most people can be what they want to be. They are happy together so why not be what they want to be

I'm not sure about this website. Did you read the "ABOUT US"? Not the most credible folks.

Nasa

you need to tag this article with more detail.

i think it's alsome but yeah tag

http://www.hampdenurology.com/physicians.shtml Here's some information about the doctor who reviewed this article. Apparently, he is a urologist who helped found healthcommunities.com. The page discusses his education and some of his medical experience. From this information, do you think he is a credible source on teen pregnancy?