Lately I have been traveling a lot for work. This has made me seriously consider buying offsets for these trips. I know that it is better to not travel at all, but outside of quitting my job I can't get around it. I have considered spending money on projects around the house to lessen my footprint, but using a carbon offset seems to give you more bang for the buck. My question is, are these offsets really helping or should I save my money for a bigger ticket item like a solar water heater?