Arctic Sea Melting Enhancing the Effect of Global Warming in High Latitudes The world warmed by about 0.7°C in the 20th century. Every year in this century has been warmer than all but one in the last century (1998). If carbon-dioxide levels were magically to stabilize where they are now (almost 390 parts per million, 40% more than before the industrial revolution) the world would probably warm by a further half a degree or so as the ocean, which is slow to change its temperature, caught up.
Environmental Issues Webquest Global Warming and the Greenhouse Effect Go to http://www.globalissues.org/article/233/climate-change-and-global-warming-introduction and answer the following questions. 1. What is the greenhouse effect? 2. How does it relate to climate change? 3. Draw and label the greenhouse effect. 4. Scroll down to the section “The Greenhouse Effect is Natural. What do we have to do with it?” What are some ways that humans are thought