so said Tony Blair at the launch of the Review on tackling global warming, written by the eminent economist Sir Nicholas Stern. The purpose of his review, which he wrote for the Government is to set out the costs to the world economy of not tackling global warming.
At this stage, Carbon emissions have already pushed up global temperatures by half a degree Celsius -doesn;t sound a lot, but small changes can have severe consequences-it only took a drop of 5 C to set off the last Ice Age.
If no action is taken on emissions, there is more than a 75% chance of global temperatures rising between two and three degrees Celsius over the next 50 years
There is a 50% chance that average global temperatures could rise by five degrees Celsius
Stern warns, that if no action is taken:
Floods from rising sea levels could displace up to 100 million people
Melting glaciers could cause water shortages for 1 in 6 of the world's population
Wildlife will be harmed; at worst up to 40% of species could become extinct
Droughts may create tens or even hundreds of millions of "climate refugees"
S4-sample answer on waterfalls and V-shaped valleys
Click here for link to Geowiki page
5 comments:
In our shopping survey most people had already been asked and there were not a lot of people who would answer our questions.
in our shopping survey most people had been asked all ready and didn't want to answer
In my shopping survey everyone we asked cooperated and they came up with similar results.
In our shopping survey every one we asked roughly came up with the same answers.
There is an in depth look at climate change on the following web page:
http://newsvote.bbc.co.uk/1/hi/in_depth/sci_tech/2004/climate_change/default.stm
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