Solar physicists increasingly say we could be entering a 'grand solar minimum' of no sunspot activity, the last one of which coincided with the Little Ice Age. Climate scientists are looking at how that could impact global warming.
A new study from Chinese and Canadian researchers links the burning of fossil fuels to China's rise in its daily temperature spikes. China emits more greenhouse gas than the next two biggest carbon polluters – the US and India – combined.
Increasing summer ice melt in the Arctic Ocean could shift global weather patterns and make polar waters more navigable. But scientists say forecasting Arctic ice and weather remains a massive challenge.
Researchers say that evidence of ancient life on Mars could take the form of simple organic molecules lying just beneath the Red Planet's surface, and that it could be detectable by NASA's newest rover, which is scheduled to touch down on the planet next month.