6. What is one problem, discussed in the video, with humans using oil as an energy source?

One problem discussed in the video with humans using oil as an energy source is the environmental impact it has. Oil extraction, transportation, and usage contribute to air and water pollution, as well as land degradation. Oil spills during transportation or extraction operations can have disastrous effects on marine and coastal ecosystems. Additionally, burning oil releases greenhouse gases into the atmosphere, leading to climate change and global warming.