Every week a Guardian Money reader submits a question, and it’s up to you to help him or her out – a selection of the best answers will appear in next Saturday’s paper.
Like Emma Thompson, I take flights but am worried about the impact on the environment. I see various “carbon offset” schemes but never know what it is I’m really paying for, and which companies or sites I should really trust. Is it a good thing to spend money on, and which is best?
Do you have a problem readers could solve? Email your suggestions to email@example.com or write to us at Money, the Guardian, Kings Place, 90 York Way, London N1 9GU.