Earth

Earth

Bad days for dinosaurs began long before the last of them died

Earth

Intraplate quakes signal tectonic breakup

The unusual April temblors are the latest in a massive energy release that is cleaving the Indo-Australian crustal plate in two.

Oceans

Soundings

The Story of the Remarkable Woman Who Mapped the Ocean Floor by Hali Felt.

Earth

Earth & Environment

Soot’s contributions to global warming may be overestimated, and unusual source of oceans’ methane discovered.

Earth

Arctic sea ice hits record low, and keeps going

A summer storm and thinner ice probably contributed to this year’s massive melt.

Earth

The facts behind the frack

The gas, primarily methane, is cheap and relatively clean. Because America is brimful of the stuff, harvesting the fuel via fracking could provide the country jobs and reduce its dependence on foreign sources of energy.

Earth

Himalayan melt may be less than thought

Satellite data suggest net ice loss has been modest.

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.

Earth

When studying a monster volcano, poke softly with a sensitive stick

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.