National Geographic: NASA satellites show part of Chinas plan to meet its ambitious new UN pledge to cut carbon emissions: solar power. On Tuesday, China said it would halt the rise in its heat-trapping emissions within 15 years and would boost its share of non-fossil fuel energy use to 20 percent by 2030. Its commitment, similar to the one it made last year in a joint U.S. agreement, comes ahead of UN climate talks in Paris in December. Chinas goal reflects how quickly its becoming the worlds leader in solar power....