Matching Pairs Matching environmentOnline version Match the definition with the word by Mat Paredes 1 Gases like carbon dioxide (CO2), water vapor, and methane in the Earth’s atmosphere that allow sunlight to come through but stop heat from leaving 2 A worldwide increase in the average temperature of the atmosphere 3 Goods and services that do not hurt or damage the environment 4 A measurement of how our activities affect the environment (in units of CO2) 5 The relationship of living things to each other and to their environment eco-friendly Greenhouse effect CARBON FOOTPRINT Ecology Global warming