> Speech advice for the topic Global Warming?

Speech advice for the topic Global Warming?

Posted at: 2015-03-12 
Global Warming occurs as a result of increased concentration of greenhouse gases in the atmosphere. The main greenhouse gases are water vapor, carbon dioxide, methane, nitrous oxide and ozone. These gases do now allow all the radiations from the Earth to escape back info space. This is known as the Greenhouse Effect. This trapped radiation or heat helps to keep the Earth at a constant temperature. Greenhouse effect is thus very important to main the temperature of the Earth at a habitable level.

Over the past few 100 years, human have been burning trees and fissile fuels, thereby releasing millions of tones of carbon dioxide into the atmosphere. The increased level of carbon dioxide in the atmosphere has caused the temperature of the Earth to rise. This, in turn, causes more water to evaporate into the atmosphere. Water vapor is also very good at absorbing heat. This cause the Earth’s atmosphere to become even warmer. Scientist has called this effect ‘Global Warming’. They have warned that Global Warming could shift rainfall patterns, raise the sea level and alter the ecological balance.

I think, it will help you, if you need extra information, you can go with google.

My advise is to search the web, do some reading and do your own schoolwork

Ignore harley dave He doesn't know jack about AGW GW has not stopped. Only someone with no understanding of science would think that

There is no credible, unmanipulated, scientific data that supports the notion of catastrophic, Man-made, Global warming.......None......Period!! Anyone claiming otherwise is simply lying......Period!!

there is no global warming , back in 1998 it was found the IPCC affiliate at east anglia university in england which supplied all the data for activist global warming enthusiasts had been faking their results , since then global measurements have been under scrutiny and there has been no warming

So I have a speech to do and i chose the topic Global Warming, and it has to be 3-5min or they will deduct marks! Any tips on what to write? Any examples for the hook/begining sentance to grab the audiences attention? lol any help please?! I have to include the affects it has on the future, causes and solutions!