The world has a massive problem with the accumulation of waste and garbage, and the problem continues to grow worse. As the global population has steadily climbed, from 2.56 billion in 1950 to 7.7 billion in 2019, the waste situation has escalated to what many experts are calling an environmental crisis.

The environmental impact of landfills -- The plastic-plagued planet -- Growing heaps of e-waste -- A staggering amount of wasted food -- Global efforts and challenges.