I think it is obvious why it is funny that somebody proudly exclaims that he is donating to fraudulent "charities", who totally are going to stop climate change.
What do you think these "charities" are doing? Genuinely curious.
They did not specify the charities they're donating, so it's very hard for me to form an opinion. Perhaps you have a better insight, judging from the confidence you are displaying?
Lol.