Agence France-Presse: Scientists presented rare evidence on Monday linking climate change to a specific weather disaster: flooding that killed more than 170 people in Russia in 2012. Increasingly, global warming is invoked by climate campaigners when the world is hit by a new drought, tropical storm or heatwave. But scientists are generally cautious about blaming climate change for a given event, which may simply have been the result of natural variability. In a study published in the journal Nature Geoscience, researchers...