[Einigkeit_Recht_Freiheit]

It's about time travel, didn't you read the Headline?

In all seriousness it isabout the following:

Travelling from A to B in fossil-fuel powered transportation emits a given amount of CO2 into the atmosphere. This can be approximately calculated in you know the distance and type of transportation taken.

If, in turn, you wish to "offset" those emissions, you can purchase carbonn emission reduction credits and/or invest in alternative energy or planting trees that theoretically reduces the amount of carbon in the atmosphere by an amount commensurate with what one has calculated that one has released.

More simply put: If you cut a tree and burn the wood, you are pretty much even if you plant another tree.

[killjoy]

More simply put: If you cut a tree and burn the wood, you are pretty much even if you plant another tree.

Even more simply put: Save the planet, kill yourself.

[knarf]

"More simply put: If you cut a tree and burn the wood, you are pretty much even if you plant another tree."
Or buy shares ...

burn a tree and either plant a tree or pay to have one planted.