Earth
We summarize the week's scientific breakthroughs every Thursday.
- Earth
Hey, What about Us?
The plight of polar bears may get most of the attention as climate change disrupts the Arctic ice, but plenty of other species, from walrus and seals to one-celled specks, are also going to see their world change radically.
- Earth
New climate sensor: Swiss grapes
Records of grape harvests reveal the summer climate in parts of Switzerland as far back as the 1400s.
- Agriculture
Insects laughing at Bt toxin? Try this
A new countermeasure restores the toxicity of Bt pesticides to insects that have evolved resistance.
- Earth
Yellowstone Rising: Magma floods into chamber beneath park
Some parts of the terrain in Yellowstone National Park have been rising as much as 7 centimeters per year as molten rock wells up beneath the park.
- Agriculture
Silencing Pests: Altered plants make RNA that keeps insects at bay
Engineered plants make genetic material that disables critical genes in insects that eat the plants, offering a possible new strategy for agricultural-pest control.
- Earth
Groundwater use adds CO2 to the air
Pumping out groundwater for crop irrigation or industrial purposes releases planet-warming carbon dioxide into the atmosphere.
- Agriculture
Cleaning Up after Livestock
Manure collection system sanitizes cattle wastes and makes hay—literally—while the sun shines.
- Earth
Clay That Kills: Ground yields antibacterial agents
A special type of French clay smothers a diverse array of bacteria, including antibiotic-resistant strains and a particularly nasty pathogen that causes skin ulcers.
- Earth
The Big Dry
Parts of Australia have suffered from severe drought for more than a decade, and people, vegetation, and animals are feeling the heat.
- Earth
Bad Acid: Ocean’s pH drop threatens snail defense
As ocean waters trend toward acidity, a result of atmospheric greenhouse gas buildup, a shoreline snail's defense against predatory crabs may weaken.
- Earth
Arctic sea ice falls to modern low
The area of sea ice in the Arctic is at its lowest in nearly three decades of satellite monitoring.
- Earth
A different spin
A change in the properties of Earth's mantle at high pressure and temperature may influence seismic waves in a novel way.
