Earth
- Earth
Nanosized pollutants pose crop risks
Nanoparticles in exhaust and common consumer products can end up in soil and harm the growth and health of crops.
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- Earth
Antibacterial agent can weaken muscle
Triclosan impairs the power of the heart and other muscles in two species and at relatively low doses.
- Earth
Global groundwater use outpaces supply
Footprint measure reveals unsustainable use of the world’s aquifers.
- Earth
Extreme hot spells rising
Analyzing six decades of temperature records reveals inexorable warming and increasing episodes of extreme heat.
- Earth
Greenland enters melt mode
This year’s record-breaking island-wide thaw punctuates an ongoing warming trend.
- Animals
Epidemic of skin lesions reported in reef fish
A British-Australian research team has just found coral trout living on the south side of the Great Barrier Reef sporting dark skin raised, scablike, brown-black growths. Although the authors believe they’ve stumbled onto an epidemic of melanoma — a type of skin cancer — other experts have their doubts. Strong ones.
- Earth
Stronger storms may destroy ozone
Extra water vapor churned high into the atmosphere by climate change–fueled tempests could trigger destructive chemical reactions.
- Earth
External ills imperil tropical reserves
Impacts just outside park boundaries cause ecosystems within to decline.
- Earth
Night lights may foster depression
In animals, chronic dim light triggers brain changes that disappear with the return of nightlong darkness.
- Life
Polar bears’ ancient roots pushed way back
Full genetic blueprints suggest the animals split from brown bears millions of years ago.
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