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Predicting global climate change
It is very difficult to accurately predict the likely changes associated with global
climate change for many reasons.
Some of the likely changes might occur naturally anyway so it is difficult to tell
whether an event is caused by human actions or not. This change may…
other changes that decrease the rate or amount of the initial change and therefore
reduce its effect and help to re-establish the original equilibrium.
Higher temperatures may cause increased rates of photosynthesis, which would
stores more carbon in biomass. Levels of carbon dioxide in the atmosphere
would be lowered, which…
Chlorine and Ozone depletion
Halogens, especially chlorine in the stratosphere, cause ozone depletion in a range
A single chlorine atom is a chlorine radical because it has an unpaired electron.
This makes it very reactive.
A chlorine radical can react with an ozone molecule, breaking it down to…
Why is ozone depletion greatest in Polar Regions?
The chemical reactions involving chlorine and ozone require UV B but occur most
easily at very low temperature when ice crystals form that provide catalytic surfaces.
During the Polar winter the temperature drop and allow the ice crystals to form,