GLOBAL WARMING

INTRODUCTION

Global warming is the term used to describe a gradual increase in the average temperature of the Earth's atmosphere and its oceans, a change that is believed to be permanently changing the Earth's climate.The sun sends out energy as heat and light. This energy comes to our earth during the day time.

Some of the sun’s rays get ‘trapped’ in the atmosphere.

Some of them get reflected back into space.

The ones which get through the atmosphere warm the earth up. 

CONTENT

All the time, the earth radiates heat into space, which cools it down. We only really notice this at night, when there is no heating from the sun.

Some of the heat going out is trapped by the atmosphere. This is what makes our planet warm enough to live on.

But if too much heat is trapped, our planet will warm up and the climate will change.

• How do humans increase carbon dioxide levels in the atmosphere?

Burning fossil fuels releases the carbon dioxide stored millions of years ago. Most of the increased carbon dioxide comes from fossil fuels, 

Deforestation releases the carbon stored in trees. Less trees also means less carbon dioxide can be removed from the atmosphere.

Methane is produced when bacteria rot organic matter, Methane is also released when fossil fuels are extracted, The amount of methane in the atmosphere has increased by two and a half times since the Industrial Revolution.

CONCLUSION

Because greenhouse gas emissions are tied very closely to our energy consumption, using less fossil fuel based energy puts fewer greenhouse gases into the atmosphere.

We humans are thought to be the main cause of global warming and climate change……..

but we still have the chance to do something about it by relying on   alternatives fuels or green energy thus reducing the emission of green house gases & saving our planet.