Question

what factors contribute to global warning

Answer 1

POR QUE A SUA PERGUNTA ESTÁ EM INGLÊS? VOU TE RESPONDER EM INGLÊS TAMBÉM.

The main causes of global warming
Caused by actions of human beings
1 - Increased emission of greenhouse gases - mainly caused by increased use of fossil fuels (petrol and diesel). The main gases that promote global warming are:

- Carbon dioxide - CO2
- Methane Gas - CH4
- Nitrous oxide - N2O
- Perfluorocarbons
- Sulfur hexafluoride - SF6
- Hydrofluorocarbons - HFCs

2 - Fires of woods and forests - and reduce the amount of trees that serve as regulators of temperature, fires play greenhouse gases in the atmosphere.

3 - Deforestation - has taken place, especially in developing countries as a way to expand areas for agriculture and grazing animals, as well as logging. With less coverage of trees and plants, increases the temperature of the environment.

4 - Urban development without planning - diminishes the green areas in cities, increasing the amount of concrete. This fact favors the formation of heat islands.

5 - Desertification - burning and deforestation can result in desertification process (formation of deserts) in various regions of the world.

Natural causes:
1 - Increased activity on the sun's surface, causing explosions and high emission of ultraviolet rays. The Sun is currently undergoing this phenomenon.

2 - The ocean water concentrates the carbon present in large quantities in the atmosphere. This fact increases the evaporation and concentration of gases in the air, thereby increasing global warming.

3 - Some scientists say that the Earth is going through a period that corresponds to the end of a glacial cycle, which began about 2.5 million years (these cycles occur from time to time). At this point is of course the increase in global temperature.