The human-induced climate crisis happening right now is no longer news. While many people urge their governments to change policies to reduce our carbon footprints more easily, there is also the possibility of individual action, or change - such as less frequent flying.
In academia, flight can be reduced by some amount (decentralized conferences, etc.) but to many people it seems difficult if not detrimental to science or mankind in total to stop flying altogether.
It is possible to offset the CO2 emissions of a flight by spending money on some carbon capture project or some project that reduces future emissions (e.g. by renewing technical machinery in third world countries). Where does this money come from? I know from colleagues that they asked their university administration to use their travel funding for some CO2-offsetting agency, and were told that this was not possible.
If I understand the rules in Germany correctly, it is not the funding body who makes such a decision but the states general travel rules for state employees.
The question I have is:
Does anyone have experience in negotiating (with a positive outcome or not) such a use of academic travel funds for offsetting the carbon emissions? If so, how did it go? What were the stumbling blocks?
If you thought about the issue but had reservations on why this might not be a good idea at all or why it is hard to actually implement, I would also appreciate your comments, though I'd prefer if you could phrase it as answer to the question(s) stated.