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Questions tagged [trees]

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2
votes
3answers
90 views

Is it okay from a sustainability viewpoint to buy a christmas tree?

I am thinking about buying a christmas tree but I want to know if that is or isn't good from a sustainability viewpoint.
6
votes
1answer
63 views

How to compensate past CO₂ emissions

How would I compensate 250 tons of CO₂ emissions that I've created in my life? Is there a sustainable way? I know trees can absorb a lot of CO₂, but once they die, the absorbed CO₂ is back in the ...
9
votes
1answer
94 views

Quantity of new trees needed to compensate all human CO₂ pollution

That trees are the major tools to remove CO₂ from the air is clear, but how many new trees need to be planted to compensate all human CO₂ pollution (6 gigatons / year?)? We should work with standard ...
11
votes
2answers
275 views

Do Christmas trees have a positive or a negative impact on carbon emissions?

In this era of growing concerns about global warming, the tradition of chopping down millions of trees each year only to discard them a few weeks later, might strike some people as bizarre. But does ...
4
votes
1answer
72 views

How do leaves trap or block particulate pollution?

This article talks about how urban trees reduce particulate pollution. In particular, a study showed that a row of trees in front of houses reduced the level of pollution detected in the houses. ...