206 articles from THURSDAY 15.2.2024

Watch a beetle larva ambush snails from below, dragging them to their demise

To shield themselves from predators, snails carry hard shells of calcium carbonate on their backs. But one wily hunter has found a way to worm around the snail’s famous defenses. On the Ryukyu Islands of southwestern Japan, the larva of a click beetle that nests underground waits until a snail passes overhead. Then it snags the snail’s soft gelatinous body from below, dragging the...

Common mineral in red soils tends to lock away trace metals over time, study finds

Trace metals are nutrient elements, like zinc, that animals and plants need in small amounts to function properly. Animals generally get trace metals in their diets or through environmental exposures, while plants take their trace minerals up from soil. If we get too little, we may experience a deficiency, but the opposite can also be true: Too much of a trace metal can be toxic.

Spot the king of planets: Observe Jupiter

Jupiter is our solar system's undisputed king of the planets. Jupiter is bright and easy to spot from our vantage point on Earth, helped by its massive size and banded, reflective cloud tops. Jupiter even possesses moons the size of planets: Ganymede, its largest, is bigger than the planet Mercury. What's more, you can easily observe Jupiter and its moons with a modest instrument, just like...

Researcher discusses how dicamba drifts

A decision this month by the U.S. District Court of Arizona has overturned the Environmental Protection Agency's 2020 reapproval of three dicamba-containing products produced by agricultural companies Bayer, Syngenta and BASF.

Study finds individual tests cannot predict optimal teams

When hiring people to be on teams, many organizations believe the best team must include the "best" individuals. Organizations construct IQ tests, pose scenarios, assign scores to applicants, or develop criteria to identify the "best." These tests, however, may be a bad idea, according to a recent study by Scott Page of the University of Michigan and Lu Hong of Loyola University Chicago. They...

Conflict in Ukraine found to be causing significant greenhouse gas emissions

An international team of scientists examined the first 18 months since the beginning of the conflict in Ukraine, exploring its consequences beyond the loss of life, with the primary focus on military emissions. Their findings underscore limitations in the current emission reporting framework of the United Nations Framework Convention on Climate Change (UNFCCC).

Which countries are most likely to make the deep sustainability turn?

A new study has shed light on the transformative potential of countries in achieving sustainable development. The research, conducted by a team of researchers at the University of Tartu, challenges conventional wisdom by suggesting that a country's ability to enact transformative change is not solely determined by its wealth or environmental impact.

Study shows methane emissions from wetlands increase significantly over high latitudes

Wetlands are Earth's largest natural source of methane, a potent greenhouse gas that is about 30 times more powerful than carbon dioxide at warming the atmosphere. A research team from the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) analyzed wetland methane emissions data across the entire Boreal-Arctic region and found that these emissions have increased by...

Study finds oxygen rise in the tropical upper ocean during the Paleocene-Eocene Thermal Maximum

Oxygen is fundamental to sustaining life on Earth. The ocean gets its oxygen from its uppermost layers in contact with the atmosphere. As our planet continues to warm, the ocean is gradually losing its capacity to absorb oxygen, with severe consequences on marine ecosystems and human activities that depend on them. While these trends will likely continue in the future, it remains unclear how ocean...

Searching for clues in the history book of the ocean

New research has shown that the tropical subsurface ocean gained oxygen during the Paleocene-Eocene Thermal Maximum (commonly referred to as PETM). During this short-lived interval of time in Earth s history that occurred 56 million years ago the average temperatures rose by up to six degrees within a few thousand years.