Matching Pairs The Causes and Effects of Climate ChangeOnline version Matching the words with their definitions. by LAURA MICHELLE JIMENEZ PAZMINO 1 Ecosystem 2 Drought 3 Fossil fuels 4 Atmosphere 5 Climate change 6 Carbon dioxide 7 Excess 8 Greenhouse gas a long-term change in the average weather patterns that have come to define Earth's local, regional and global climates. a gas that traps heat from the sun, the layer of gas that surrounds the Earth, a heavy colorless gas that is formed by burning fuels. made from decomposing plants and animals. a long period of time without rain. an area where certain plants and animals live and interact. too much of something.