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The Brochure - GLOBAL WARMING and local effects

The Brochure - GLOBAL WARMING and local effects

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1.) Carbon dioxide is undoubtedly, the most important greenhouse gas in the atmosphere.<br />

Changes in l<strong>and</strong> use pattern, deforestation, burning fossil fuels, Power Plants, use of fertilizer<br />

in agriculture <strong>and</strong> other activities have all led to a rise in the emission of carbon dioxide.<br />

At first we want to talk about burning fossil fuels.<br />

a) Burning fossil fuels<br />

When fossil fuels like coal, oil <strong>and</strong> gas are burned, they release greenhouse gases. In 2005,<br />

burning fossil fuels sent about 27 billion tons of carbon dioxide into the atmosphere.<br />

People burn fossil fuels to create energy, which is used for many things including:<br />

� heating homes <strong>and</strong> buildings<br />

� growing, transporting <strong>and</strong> cooking food<br />

� travelling (for example, by car, plane, bus <strong>and</strong> train)<br />

� treating water to make it drinkable, heating it <strong>and</strong> piping it into homes<br />

� manufacturing, using <strong>and</strong> transporting products, from clothes to fridges, from plastic<br />

bags to batteries<br />

b) Deforestation<br />

Cutting down forests faster than they are replaced (deforestation) is a major contributor to<br />

climate change. It accounts for about 20 per cent of human carbon emissions – more than the<br />

entire global transport sector produces.<br />

Deforestation makes such a huge contribution to carbon emissions because trees absorb CO2<br />

as they grow. <strong>The</strong> more trees that are cut down, the fewer there will be left to absorb CO2,<br />

leading to it building up in the atmosphere.<br />

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