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Climate

Amazon may become greenhouse gas emitter

South America’s massive rain forest may soon release more carbon into the atmosphere than it absorbs.

Science & Society

In many fields of science, it’s always the year of the rat

Life

Boxwood blight invades North America

The devastating fungus has already stripped shrubbery down to sticks in Europe and New Zealand.

Humans

Junk food in schools gets weighty reprieve

Disputed data suggest that non-nutritious eats sold on-site don’t fatten kids.

Health & Medicine

Mineral quashes deadly bacterial poisons

Manganese supplement might someday help counter a virulent form of E.