Drought killed off inedible plants in Kruger National Park, making room for other plants that animals like to eat.
Scientists can now link "acts of God" to climate change. That could give victims the power to hold someone accountable, say lawyers.
Tornadoes and flash floods can happen at the same time, but safety instructions for each one is the opposite.
A panel of researchers discussed the need for a system to warn the public about health risks from wildfire smoke, similar to the National Weather Service's heat advisory.