Earth
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Humans
Numbers warn of looming collapses
Mathematical tools help researchers predict when systems are about to change dramatically.
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Animals
Classic sooty-moth tale bolstered by new results
A scientist’s six-year backyard experiment strengthens the scenario for evolutionary changes due to industrial pollution.
By Susan Milius -
Earth
Little Ice Age began with a bang
Frozen moss suggests climate cooling kicked off fast, possibly with help from volcanic eruptions.
By Devin Powell -
Earth
Some corals like it hot
Western Australian reefs are faring better than their eastern counterparts, at least for now.
By Devin Powell -
Earth
Big volcanoes wake up fast
Crystal chemistry suggests magma changes quickly before a huge eruption.
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Humans
Predatory pythons shift Everglades ecology
As invasive snakes expand territory, some mammal populations drop by more than 90 percent within a decade.
By Janet Raloff -
Earth
‘Nonstick’ pollutants may cut efficiency of vaccines in kids
Antibodies from immunizations are halved among children with the highest exposure levels to common chemicals.
By Janet Raloff -
Climate
Amazon may become greenhouse gas emitter
South America’s massive rain forest may soon release more carbon into the atmosphere than it absorbs.
By Devin Powell -
Life
Boxwood blight invades North America
The devastating fungus has already stripped shrubbery down to sticks in Europe and New Zealand.
By Susan Milius -
Earth
Carbonation brings diamonds to surface
Chemical reactions deep inside the Earth fuel magma’s gem-laden upward journey.