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Your Questions about climate change

Are you seeing changes in your environment, but are unsure if it's related to climate change? Or do you have a question about climate change in general that you would like answered?

Then please ask one of the expert climate scientists on the Climate Witness Science Advisory Panel.

How is global warming responsible for the death of corals?

Q. How is global warming responsible for the death of corals?

A. Global warming has increased the temperature of our tropical oceans by about a degree over the last hundred years. This has increased the chance that corals will undergo something called coral bleaching, which is...

Posted on 24 March 2009 | 1 comments | Read more

Are the increasing rains in Soweto related to climate change? - Thando

Q. Soweto recently witnessed rains that have never existed. Thing is it was raining from Jan till Feb most of the time but on the 25th the rain was worse. Houses collapsed and people were taken by the river...

A. While the rain experienced by Soweto was unusual, it was not in fact unprecedented...

Posted on 06 March 2009 | 0 comments | Read more

Is climate change responsible for larger numbers of parasitic insects? - Sheryl

Q. I have only lived in North Carolina for about 8 years, but since I’ve been here, I have noticed that parasitic insects have become FAR more prevalent than they were when we first came here...

A. Yes, Sheryl is right. Milder winters keep insects breeding, and new insects migrate to places where they find no predators.

Posted on 27 February 2009 | 0 comments | Read more

How is global warming different from natural climate cycles? - John

Q. Why is it that all the “climate change” or “global warming” blamed on people instead of the earths natural cycles?

A. Natural climate cycles have a time scale of 100,000 years for the glacial period, or 20,000 for the interglacial. The warming we are now inside has a time scale of 200 years...

Posted on 27 February 2009 | 0 comments | Read more


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