answersLogoWhite

0

the enhanced greenhouse effect.

An increase in the concentration of greenhouse gases in the atmosphere results in more heat being retained and an overall warming of the Earth's temperature. Although they make up a small percentage of atmospheric gases, changes in the concentration of greenhouse gases have a huge effect on the balance of natural processes.

The core concern about climate change is human potential to alter the climate through activities that are a result of our way of life and how we treat the natural environment. There have been significant technological advances over the past 60 to 100 years that have offered humankind countless benefits and conveniences. These increases in human activity, however, have also led to an additional release of greenhouse gases that have placed stress on natural processes.

Some of the gases, such as carbon dioxide, water vapour, methane, nitrous oxide, and ozone are the result of both natural and human processes. Others, notably fluorinated gases, are generated solely by human activities. The sources of these gas emissions include burning fossil fuels to power our way of life, industrial processes, urbanisation and land use, agriculture and deforestation. Since the beginning of the industrial revolution, concentrations of carbon dioxide in the atmosphere have increased nearly 30 per cent methane concentrations have more than doubled, and nitrous oxide concentrations have risen by about 15 per cent.

Carbon dioxide is the single largest contributor to the enhanced greenhouse effect. Increases in carbon dioxide emissions account for approximately 70 per cent of the enhanced greenhouse effect. Using ice cores from the Antarctic, scientists estimate that the concentration of carbon dioxide in the atmosphere in the pre-industrial era had a value of approximately 280 parts per million (ppm). Measurements in 2005 put it at 379 ppm. The 2005 figures also tell a story of alarming growth. The 2005 carbon dioxide levels exceeded the natural range of atmospheric carbon dioxide over the last 650,000 years (180 to 300 ppm). In addition, even though there has been year to year variability (at an average of 1.9ppm), the annual growth rate of carbon dioxide concentrations in the atmosphere was larger during the 10 years between 1995 and 2005 than it had been since the beginning of continuous direct atmospheric measurements between 1960 and 2005 (average: 1.4 ppm per year) (IPCC, 2007).

User Avatar

Wiki User

12y ago

What else can I help you with?

Related Questions

Does water particles fall to the earths surface after their temperature increases?

No when there density increases


How does temperature change with depth below earths surface?

temperature increases with depth


What is primary cause of recently measured increases in earths temperature?

Holes in Ozone.


Does pressure and temperature increase or decrease with depth below earths surface?

it increases


What are the two layers of the earths atmosphere where the temperature increases when you get higher?

The two layers of the Earth's atmosphere where the temperature increases with altitude are the stratosphere and the thermosphere. In the stratosphere, the temperature increases due to the presence of ozone that absorbs and scatters incoming solar radiation. The thermosphere experiences a temperature increase because of the high-energy solar radiation that directly heats this region.


As distance from earths surface increases the temperature of the stratosphere does what?

As distance from the Earth's surface increases, the temperature of the stratosphere generally increases. This warming occurs because the stratosphere contains the ozone layer, which absorbs ultraviolet (UV) radiation from the sun, leading to an increase in temperature with altitude. In contrast, the troposphere, which is the layer below the stratosphere, experiences a decrease in temperature with altitude.


When the pressure of a gas increases at constant temperature its volume?

Temperature increases as pressure increases.


As depth within earths interior increases what happens to density?

As depth within Earth's interior increases, the density also increases. This is because the pressure and temperature increase with depth, causing the materials in the Earth to become more compact and thus more dense.


How does temperature of earths crust compare to the temperature of earths interior?

it depends on the deepth


As pressure increases temperature does what?

The temperature rises.


What will happen to the ability of a solid to dissolve in a liquid if the temperature increases?

It increases as the temperature increases.


What happens to the ability of a solid to dissolve in a liquid if the temperature increases?

It increases as the temperature increases.