Ozone is beneficial to us as long as it stays where it is supposed to stay-which is the ozone layer in the stratosphere. This ozone layer protects from the harmful radiation of the sun.This is where over 90% of the earth’s ozone resides.
Air pollution by ozone occurs at ground level. At ground level ozone is created by a chemical reaction between oxides of nitrogen (NOx), and volatile organic compounds (VOC) in the presence of sunlight. Ozone has the same chemical structure whether it occurs high above the earth or at ground level.
Ground-level or "bad" ozone is an air pollutant that damages human health, vegetation, and many common materials. It is a key ingredient of urban smog.
Ozone is used in some air purifiers for household rooms. However, warning have been issued about the use of some of these purifiers. See: http://www.arb.ca.gov/research/indoor/ozone.htm
Traditionally seen as an environmental and an energy issue, climate change is now also being cast as a threat to international peace and security. Africa, though the least responsible for greenhouse gas emissions, is seen as the continent most likely to suffer its worst consequences—a function of the continent’s reliance on climate-dependent sectors (such as rain-fed agriculture) and its history of resource, ethnic and political conflict.Properly addressing these dimensions of water is a complex challenge. By 2030, the world economy is projected to double and the world population to increase by one-third – another two billion people. To feed them, crop production will need to increase by 50%. Growing pressures from agriculture, energy production and industries are imperilling our water resources. We see pollution, misallocation among different competing uses of water, and too many people without safe drinking water.After pursuing countless generations of continuous growth, the human species is finally confronted with one of its greatest challenges: how to live sustainably upon the earth. The fact that we have not done so up until now is readily evident – natural resources are running out and being degraded, local environments are experiencing radical climatic changes, and people around the world are dying from starvation and disease.
Ozone is beneficial to us as long as it stays where it is supposed to stay-which is the ozone layer in the stratosphere. This ozone layer protects from the harmful radiation of the sun.This is where over 90% of the earth’s ozone resides.
Air pollution by ozone occurs at ground level. At ground level ozone is created by a chemical reaction between oxides of nitrogen (NOx), and volatile organic compounds (VOC) in the presence of sunlight. Ozone has the same chemical structure whether it occurs high above the earth or at ground level.
Ground-level or "bad" ozone is an air pollutant that damages human health, vegetation, and many common materials. It is a key ingredient of urban smog.
Ozone is used in some air purifiers for household rooms. However, warning have been issued about the use of some of these purifiers. See:
http://www.arb.ca.gov/research/indoor/ozone.htm
Traditionally seen as an environmental and an energy issue, climate change is now also being cast as a threat to international peace and security. Africa, though the least responsible for greenhouse gas emissions, is seen as the continent most likely to suffer its worst consequences—a function of the continent’s reliance on climate-dependent sectors (such as rain-fed agriculture) and its history of resource, ethnic and political conflict.Properly addressing these dimensions of water is a complex challenge. By 2030, the world economy is projected to double and the world population to increase by one-third – another two billion people. To feed them, crop production will need to increase by 50%. Growing pressures from agriculture, energy production and industries are imperilling our water resources. We see pollution, misallocation among different competing uses of water, and too many people without safe drinking water.After pursuing countless generations of continuous growth, the human species is finally confronted with one of its greatest challenges: how to live sustainably upon the earth. The fact that we have not done so up until now is readily evident – natural resources are running out and being degraded, local environments are experiencing radical climatic changes, and people around the world are dying from starvation and disease.