What is CO2?

The Week - Junior - - Animals And The Environment -

Car­bon diox­ide (CO2) is a gas that is pro­duced when peo­ple and an­i­mals breathe out. It is also re­leased when fos­sil fu­els are burned. Too much CO2 in the at­mos­phere makes the green­house ef­fect stronger. The green­house ef­fect is when the Sun’s heat gets trapped in Earth’s at­mos­phere, warm­ing up the planet (global warm­ing).

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