Air pollution in parts of China is now so extreme it could lead to conditions similar to a “nuclear winter,” scientists say. The smog that covers the country has become so thick it is impeding photosynthesis, potentially disrupting China’s food supply. China’s pollution problem is reaching crisis point, with acrid smog covering six southern provinces for the past week. Over the last few days... 

Study in the United States showed that fruit that ripens uniformly is preferred by producers, but lose their flavor. The difference in taste of supermarket tomatoes compared to those from the garden has genetics as an explanation. An international team of researchers identified the genetic mutations responsible for the uniform maturation of fruit that also causes the least amount of sugar in the tomato. For...