What is the effect of excess carbon dioxide in the earth's atmosphere?

Answer 1

When there is excess, global warming rises more, and more, and more!!!

When there is excess of carbon dioxide, global warming rises so much that there could be mosquitoes that produce the malaria in Europe!!!

EDIT:

Increased levels of CO2 increases global warming because CO2 is a greenhouse gas. The infra-red radiation emitted by the Earth is absorbed by greenhouse gas molecules, increasing their vibrational energy. This energy is then passed onto neighbouring molecules via collision (kinetic), and the increased kinetic energy of the air = increased temperature. Also, molecules which have absorbed IR radiation may re-emit it in all directions, some of which are towards the Earth. Therefore, this prevents the radiation from escaping the Earth's atmosphere, this warming the Earth. Global warming causes changes in crop cycles, extinction of certain species which can't adapt fast enough to survive, and changes in weather patterns.

Increased CO2 levels in the atmosphere can also lead to the death of marine animals/ plants, because the CO2 dissolves in sea water, and the more CO2 there is in the atmosphere, the greater the concentration gradient between the air and the water, so the greater the amount of CO2 which is dissolved into the oceans. This increases the acidity of the water because CO2 + H2O -> COOH, i.e. it creates a carboxylic acid. The increased acidity affects marine life, and causes the bleaching of coral reefs and the extinction of many other animals and plants.

All of this has an impact on humans - the bleaching of coral reefs could affect tourism, as could the changes in temperature and weather patterns. The extinction of animals and plants could lead to a food shortage. Mosquitoes (which thrive in hot climates) could lead to an increase in Malaria cases.

Answer 2

When more carbon dioxide is added to the atmosphere the extra greenhouse gas retains more of the sun's heat and the atmosphere warms up. The carbon cycle normally moves carbon in and out of the atmosphere, maintaining a balance, but CO2 from the burning of fossil fuels is adding more than the cycle can cope with. This is what is causing global warming.

Answer 3

it helps the plants go through photosynthesis

Answer 4

When carbon dioxide level rises in the atmosphere, it leads to global warming because it enhances the greenhouse effect, trapping infrared radiation close to the surface.

Answer 5

Excess carbon dioxide, which comes from the burning of fossil fuel, is turning the natural greenhouse effect into an accelerated greenhouse effect, which is causing global warming.