It is claimed that climate change is the chief threat to human civilization. I do not agree with this statement because people can find technological solutions to this problem. However, there is another graver threat, which is that of nuclear weapons as this cannot be so easily solved. Some would argue that the increase in the planet’s average temperature will lead to catastrophe on a global scale; however, the technology already exists to stem this threat. Solar power, combined with the use of electric vehicles, will remove the need for fossil-fueled power stations and transportation. The result will be a massive reduction in the release of greenhouse gases into the earth’s atmosphere, which are the principal cause of global warming. For example, Tesla Motors produces excellent cars that produce zero CO2, and its sister company, Solar City, allows people to produce their own electricity using innovative photovoltaic roof tiles and Powerwall battery packs. A much larger danger...