Mashable: We're entering the final sprint toward one of the most consequential rounds of climate change negotiations in history, which will take place in Paris this December. Those talks have the goal of devising an international agreement that will limit global warming to below 2 degrees Celsius, or 3.6 degrees Fahrenheit, above preindustrial levels by 2100. Study after study has already found that this goal is going to be extremely difficult for the world to reach, in light of recent emissions trajectories...