Atmosphere

The earth’s atmosphere is negatively affected by air pollution from human activity. In fact, air pollution kills an estimated seven million people worldwide every year. World Health Organization (WHO) data shows 9 out of 10 people breathe air containing high levels of pollutants.

Different forms of atmospheric pollution have different consequences. First, factories, power plants and vehicles produce sulfur and nitrogen oxides. These pollutants can cause respiratory ailments and aggravate conditions such as asthma. They can also cause acid rain, or acid deposition, which harms trees, lakes and streams and the wildlife that live there. Second, industrial processes and explosions may release harmful particulate matter into the atmosphere, which the wind then spreads around the world. This is of particular concern when winds spread pesticides, radioactivity, or other hazardous material. Third, the stratospheric ozone layer is needed to absorb most of the harmful ultraviolet (UV) rays from the sun. Some manmade chemicals, especially refrigerants, can rise into the stratosphere, react chemically with the ozone molecules, and eat away at the earth’s ozone layer. Increased UV rays can cause increases in certain types of skin cancers, eye cataracts, and immune deficiency disorders. They  also affect plant growth, reducing agricultural productivity.

Events and Articles

Filter by:

Showing 21 - 30 of 56 results

37th Meeting of the Open-Ended Working Group of the Parties to the Montreal Protocol

Delegates made slow and steady progress throughout the week, with many lauding discussions for moving from a general nature to addressing specific challenges. Although the contact group was not able to complete its mandate, a sense of optimism remained after the closing session with expectations that the next round of negotiations would continue to make significant progress and provide concrete steps towards adopting an amendment on HFC management in 2016.
Event 4 April 2016 - 8 April 2016

Vienna Convention COP 10 and Montreal Protocol MOP 26

MOP26 adopted eight substantive and seventeen procedural decisions. Substantive decisions adopted include: essential-use exemptions (EUEs) and critical-use exemptions (CUEs); availability of recovered, recycled or reclaimed halons; and a Technology and Economic Assessment Panel (TEAP) report on alternatives to ozone depleting substances. 
Conference of the Parties (COP) 17 November 2014 - 21 November 2014