The second law of thermodynamics says that entropy may only ever increase during the conversion of one physical state into another. Finding an analogous quantity to characterize the conversion of ...

The use of solar power in irrigation raises concerns about sustainable groundwater extraction. However, an empirical study from Bangladesh shows that the energy source is just one piece of a larger ...

Reuters, the news and media division of Thomson Reuters, is the world’s largest multimedia news provider, reaching billions of people worldwide every day. Reuters provides business, financial, ...