GCSE Geography-Climate Change

What increases green house gases in atmosphere human way?

Deforestation Dumping waste in landfill-when decomposed it produces methane Burning fossil fuels Agricultural practices leads to releases in methane and nitrogen oxide

Positive impacts on global warming globally?

Energy consumption may decrease due to fewer warmer climate More crops growing season for agriculture Frozen regions like Canada may be able to grow crops now

When did global warming start?

From 1950s

Three ways of knowing climate change?

Ice cores, glacial retreat, early spring and rising sea levels

What are the greenhouse gases?

Methane, nitrogen oxide, sulfur dioxide

Natural factors increasing global warming?

Milkonavitch cycles-tilts of earth and orbit around sun Volcanic eruptions Incoming solar radiation input

In the U.K. What are the positive impacts of climate change?

People will have more fruits such as grapes, oranges can be grown Less money paid for heating bills during winter season as temperatures are higher Accidents on road in winter will be less due to no more ice on roads

What are the negative impacts of climate change in the U.K.?

Scottish ski resorts close down to due no more snow More pressure on water supply in summer when water is in more demand due to more evaporation More chances of droughts and floods as extreme weather increases Sea levels rise-low lying coastal areas covered

Negative Impacts of climate change globally?

Sea level rise will affect 80 million people Tropical storms in crease in magnitude Species in affected areas become extinct Additional 280 million people affected by increase in malaria disease

Describe the greenhouse effect

The earth allows short wavelength radiation from the sun to heat up the earths surface. Some of the radiation (long wavelength radiation) is emmited and reflected by the earth and is absorbed by greenhouse gases like nitrous oxide, methane and sulfur dioxide This heats up the earths surface