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enhanced greenhouse effect click to hear : enhanced greenhouse effect

Human activity constantly emits greenhouse gases, which trap ever more heat in the atmosphere.
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air conditioning system intensive husbandry intensive farming global warming greenhouse gas concentration fossil fuel

air conditioning system click to hear : air conditioning system

Air conditioning systems use chlorofluorocarbons (CFCs) that absorb infrared rays and damage the ozone layer.

intensive husbandry click to hear : intensive husbandry

Raised in great numbers, ruminants emit methane as a by-product of digestion.

intensive farming click to hear : intensive farming

To obtain the maximum yield, intensive farming uses chemical fertilizers that are responsible for various forms of air and water pollution.

global warming click to hear : global warming

Temperatures have increased by 0.5% in the last century; continued rises in temperature could result in major climate changes.

greenhouse gas concentration click to hear : greenhouse gas concentration

Increasingly abundant greenhouse gases reflect more and more infrared rays toward the Earth’s surface, accelerating global warming.

fossil fuel click to hear : fossil fuel

The combustion of wood and fossil fuels (coal, oil, natural gas) emits carbon dioxide and methane into the atmosphere.