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31 votes
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Why does the cost of planting trees vary so much across different websites?

There are different levels of service. In itself planting a tree is very easy and cheap, of the 3 billion trees in the UK, most drop thousands of seeds each year and some germinate all by themselves ...
7 votes

Why does the cost of planting trees vary so much across different websites?

Any time you want to give money to a charity, you should do some basic research on how the charity spends donated money. Some charities spend over 90% of donated funds on charitable works, with ...
  • 171
5 votes
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CO2 emissions from outdoor fire pit

The Short Answer Burning 1 kg of wood releases 1.6 kg of CO2. (source: EPA) I'm not sure how big your 2-3 logs are, so I'll just say that 5 kg wood is probably enough to make a reasonable outdoor fire ...
  • 2,769
4 votes

What is the minimum indoor CO2 concentration that is achievable using houseplants?

The short answer is no, not anywhere close to 200ppm and not appreciably lower than ambient conditions. The modern standard for buildings is a full air change every three hours. This means your ...
2 votes
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Shortcut carbon emission trading by buying and sinking coal

"Obviously, it would be most ecologic to leave the coal where it is. But since this does not happen..." Actually, there are some who would like to buy the coal in the ground and leave it ...
  • 11.5k
1 vote

What is the most climate friendly way to travel from Copenhagen to Atlanta?

A bus consumes about 40 liters of diesel fuel per kilometer. If there are 20 occupants, that's 2 liters of fuel per kilometer. However, with 10 occupants it would be 4 liters of fuel per kilometer. An ...
  • 3,992
1 vote

Which CO2 price would make a real difference?

A while ago I worked out that a $100/T carbon tax translates to about 6 c /liter (about 25c/gallon) This probably won't push people to drive much less or to buy smaller cars. However EV's are ...
1 vote

Shortcut carbon emission trading by buying and sinking coal

My question is, what good ways are there store/sink coal? Just sinking large quantities of coal in the oceans is probably be a bad idea, and can have disastrous side effects. So what is known in this ...
  • 3,362

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