Daily Roundup: January 14, 2011

That GMO Glow: Scientists created a tobacco plant that produces a "fluorescent glow" when its immune system is stressed. TreeHugger

Rain Check: The death toll from Brazil's recent mudslides and floods rose to more than 500. Experts say it's the worst natural disaster to strike the country in decades. Washington Times

Follow the Money: The growth of solar-power projects is affected more by the availability of subsidies than the amount of sun a state or country receives. CNN Money

Sunken Treasure: Officials are calling for the protection of deepwater coral reefs recently discovered near Puerto Rico. AP

Holy Mackerel! The European Union banned Icelandic vessels carrying mackerel from E.U. ports in response to the island nation's decision to raise mackerel fishing quotas. Reuters

--Della Watson