On Earth Day this week, President Obama gave a talk in the Florida Everglades about climate change, declaring it an imminent threat to the planet and to Florida's economy. The President has been calling for laws to control greenhouse gases and carbon pollution amid support from the Left that believes climate change to be one of the most dire issues of our time. Many conservatives either question climate change or see those laws as harmful to the economy while having little if any positive effect on the overall climate.