<human>: Can you provide a brief rundown of the text in within 3 sentences?

I'm a veteran canvasser. I've canvassed for charity, political campaigns, and for small business. Most of the time, I really don't enjoy it because you usually get very negative reaction to when you approach someone's doorstep. While most of it was annoying and horrible work, I did meet a lot of great people along the way who gave me umbrellas when it was raining, food when I was hungry, water when it was hot and I was thirsty etc. I also came across very strange moments en route.

My personal favorites of these was when I was canvassing for an environmental organization; they had me going door to door to raise money and recruit people to get involved in our cause. One very old man I talked to about climate change said that he was happy that I was out there doing charity work, but there was nothing to worry about. He said that it was nothing but the Russians tinkering with the Arctic and that the United States will "blow up the Soviets" before it becomes a problem. At this point, I wasn't too sure what to say other than that science proves that it is a problem caused by greenhouse gas emissions. He dismissed the idea and continued his rant about the Russians. I said my goodbye and left. He was insane, but he was nice.
<bot>: I canvassed for an environmental organization and an old man told me that climate change was nothing but the Russians experimenting with the Arctic.