Questions tagged [pollution]

any addition of harmful substances or products in the environment (air, water, soil or food). For questions specifically about [air-polution], [greenhouse-gas-emissions] or [toxic-chemicals] please use those tags.

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42
votes
10answers
96k views

Which tree consumes most carbon dioxide and poisonous gases?

I want to suggest to a gardener to plant trees for reducing pollution and poisonous gases emitted from a factory. Which species is preferable to plant in the area around the factory?
13
votes
4answers
3k views

How are pollution and sustainability related?

In discussing "green" policies, the words "sustainability" and "pollution" are occasionally mixed together, as if they were antonyms. My gut feeling is that something that is polluting is by ...
12
votes
2answers
878 views

Which consumes more carbon dioxide: a fully grown forest or a newly planted one that is growing?

I was talking to some friends and one of them claims that it is more efficient to combat global warming by cutting the trees and replanting them because a growing forest consumes more CO2. (Firstly, a ...
11
votes
4answers
157 views

Cleaner alternatives to gear and chain oils

I use generic gear oil to lubricate my motorcycle’s chain. I have a modern fuel-injected machine, so the chain is the only source of storm-water pollution I can think of. I try to use as little oil as ...
8
votes
1answer
233 views

Are there meaningful ways to offset greenhouse-gas emissions through carbon offset schemes?

There are various schemes offering carbon offsets. What attributes would make such a scheme meaningful? That is, where would my additional money into the scheme lead to lower global emissions than ...
6
votes
3answers
189 views

For the exactly same income, does a person pollute more when living in a big city or in a small town?

I had a recent argument with a coworker (we are both engineers) that the amount of pollution generated by a person increases with the person's income (we both agreed on that)... but my coworker ...
6
votes
1answer
679 views

Types and quantities of air pollutants by fuel, per kWh, for electricity generation?

An often repeated claim is that transitioning from coal to natural gas reduces air pollution... but what pollutants? and by how much? how is the potential reduction calculated? While natural gas (...
3
votes
1answer
118 views

How can we all together clean up the vast plastic carpets in our oceans? [closed]

It is mind-boggling to me that there is still so much plastic out in our oceans, floating around for years and ever growing and nothing is being done about it. Governments should work together, ...
4
votes
5answers
72 views

How to prevent pollution caused by a taxi rank? Is there a solution to the 'edging forward' cost of cars in a queue?

I am looking at ways in which a heavily polluting taxi rank near a train station could reduce its pollution footprint. My first thought was that the pollution was mostly down to idling and I am ...
3
votes
2answers
132 views

How do I get rid of numerous small pieces of charcoal?

There's a small piece of land used for burning tree branches on bonfire (because that's the easiest way to get rid of them). Most of the material gets burnt to ashes but some of it only turns into ...
2
votes
0answers
31 views

For the exactly same income, does a person pollutes more when living in a big city or in a small town? [duplicate]

I had a recent argument with a coworker (we are both engineers) that the amount of pollution (trash+water+air) generated by a person increases with the person's income (we both agreed on that) but my ...