New figures show last month was the warmest August on record around the globe. According to NASA, West Antarctica saw hotter temperatures of up 8 degrees Celcius higher than normal, 14 degrees Fahrenheit. This year so far is the fourth hottest on record. A new international study released today says reducing the carbon emissions that cause global warming will be of minimal financial cost, and might end up saving money. According to the Global Commission on the Economy and Climate, an ambitious plan will cost $4 trillion over 15 years, or about 5 percent of the money that would be spent anyway on new power plants and infrastructure. In addition to keeping temperatures at the level needed for long-term survival, the changes would lead to less deaths from air pollution, as well as lower medical bills and fuel costs.