Finding:

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   Pollution

   Light pollution, includes light trespass, over-illumination and astronomical interference. ... Lead and other heavy metals have been shown to cause neurological problems.
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   Light pollution

   This drop-lens cobra luminaire allows light to escape sideways and upwards, where it may cause problems. ... Collections of links related to light pollution
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   Water pollution

   Sources of surface water pollution are generally grouped into two categories based on their origin. ... This can cause further problems to existing wildlife.
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   Marine pollution

   Pathways of pollution ... Apart from plastics, there are particular problems with other toxins that do not disintegrate rapidly in the marine environment.
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   Air pollution

   Efforts to reduce pollution from mobile sources includes primary regulation (many developing countries have permissive regulations), expanding regulation to new sources (such as cruise and transport ships, farm equipment, and small gas-powered equipment such as lawn trimmers, chainsaws, and snowmobiles), increased fuel efficiency (such as through the use of hybrid vehicles), conversion to cleaner fuels (such as bioethanol, biodiesel, or conversion to electric vehicles).
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   Ship pollution

   Ballast discharges from ships are responsible for tar balls in the open oceans and seas, and can cause problems navigating tanker routes. ... | Pollution |
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   Cuyahoga River

   Pollution remains, however, including nonpoint source problems, combined sewer overflows, and stagnation due to water impounded by dams.
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   Noise pollution

   Furthermore, stress and hypertension are the leading causes to health problems, whereas tinnitus can lead to forgetfulness, severe depression and at times panic attacks. ... Pollution
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   Air Pollution Index

   It is calculated from several sets of air pollution data. ... People with breathing or heart problems will experience reduced endurance in activities.
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    Emissions trading

    It recommended an emissions trading scheme that includes transportation but not agriculture, and that emissions permits should be sold competitively and not allocated free to carbon polluters. ... Critics argue that emissions trading does little to solve pollution problems overall, as groups that do not pollute sell their conservation to the highest bidder.

Explore the following pages on Powerset:

• Pollution,
• Light pollution,
• Water pollution,
• Marine pollution,
• Air pollution,
• Ship pollution,
• Cuyahoga River,
• Noise pollution,
• Air Pollution Index,
• Emissions trading