You might say the problems of the Earth created by the actions of people could be handled with an equal-and-opposite reaction. For example, the population produces billions of tons of trash, rubbish, garbage – whatever word you prefer to use to describe the items we don’t want anymore.
In the year 2012, The Atlantic, one of the major news and literary magazines, reported that the world’s population produced about two billion tons of garbage. Most of it was going to landfills. Just four years later, The Los Angeles Times, reported the number was expected to reach four billion by 2100. Most of it was still going into landfills.