Keep in mind that you're one of the very small percentage of people that _can_ help humanity when it comes to global warming. Your being on HN suggests that you

Keep in mind that you're one of the very small percentage of people that _can_ help humanity when it comes to global warming. Your being on HN suggests that you are probably in the small proportion of people that have the abilities and resources that can affect change. Working to save money will give you resources that will let you participate in the decision making process. For example, let's consider a situation where you have $10000 that you would like to use to help. You could donate it to an effective charity, invest in Tesla, use it to lobby local government, buy solar panels, etc. That means your job is actually enormously meaningful!