Why don't we just throw all our garbage into volcanoes?
Because it's a long way to the top if you want to rock and roll
By Mary Beth Griggs November 20, 2015
Great question. Glad you asked. While volcanoes might seem like the ideal natural incinerator for our massive amounts of garbage, there are a few obstacles between us and a magical geological trash chute to the center of the earth.
Americans generate about 4 and a half pounds of trash per person, per day, or 254.1 million tons total per year. In order to dispose of all that trash in a volcano, you'd need to first locate an active volcano, and lug the trash there. That's the first problem. Not many people live near active volcanoes, so transporting trash to a volcano would cost time, money, and a whole lot of fuel. Then there's the fact that an even smaller number live near the right kind of active volcano.
https://www.popsci.com/why-dont-we-just-throw-all-our-garbage-into-volcanos