The latest report from the United Nations shows that the climate is changing a lot faster than scientists originally predicted. One way to potentially slow the effects of climate change is by implementing a carbon tax--a fee that people and businesses pay for greenhouse gases they emit due to fossil fuel use. The idea is that if energy that comes from fossil fuels is more expensive, people won’t use it as much, and businesses would be more likely to invest in renewable energy sources. Some think this is the best way to limit greenhouse gas emissions. Others say it’s a tax that will unfairly hurt the poor. Evaluate the information and discuss whether you think a carbon tax is a good idea. Why or why not?