Tuesday, April 22, 2008

What is Global Warming?



Global Warming is an important ecological issue and has many negative effects upon our environment. Global warming or what has been called the Greenhouse effect is an increase in the earth's temperature due to fossil fuels, industry, and agricultural processes caused by human, natural, and other gas emissions. For example, Sunlight radiates from the sun, through space, to Earth’s atmosphere. Then the sunlight enters the atmosphere and hits Earth. Some of it turns into heat energy. The heat gets absorbed by surrounding air and land, which in turn makes it warm. Then the greenhouse gases in the atmosphere absorb the light and bring it back the earth's surface and heat it even more. This natural process keeps the earth warm enough but the modern industry heats it more and this could threaten our way of life.

Sunday, April 20, 2008

An Inconvenient Truth!!


If anybody talks about climate change I recommend watching Al Gore's documentary film An Inconvenient Truth. ' There is too much Gore. But he presents the information and data very well and I found him convincing. It’s a really good introduction if you want to get general knowledge about climate change and it only takes one hour and a half. I watched it a few weeks ago with my friends in the classroom and our teacher and we all found it interesting and helpful. Before I watched this movie this issue hadn’t been too important to me and I didn’t know anything about global warming but after I saw the movie I started to believe and to be worried about that problem. I don’t normally recommend films, but I do recommend watching An Inconvenient Truth if you haven’t seen it.