-
Fruit and veg give you the feel-good factor
University of Warwick research indicates that eating more fruit and vegetables can substantially increase people's later happiness levels.Published in the prestigious American Journal of Public Health, the study is one of the first major scientific attempts to explore psychological well-being beyond the traditional finding that fruit and vegetables can reduce risk of cancer and heart attacks.Happiness…
-
Horrible algae bloom in Florida blamed on the government
About a hundred miles north of Miami on the Atlantic Coast, the town of Stuart is a picturesque waterfront community — with homes, restaurants and parks overlooking the St. Lucie Estuary. But in many areas now, when you approach the water, the first thing you notice is the smell."There's no way to describe it," says…
-
Climate change may shrink Adélie penguin range by end of century
Climate has influenced the distribution patterns of Adélie penguins across Antarctica for millions of years. The geologic record tells us that as glaciers expanded and covered Adélie breeding habitats with ice, penguins in the region abandoned their colonies. When the glaciers melted during warming periods, the Adélie penguins were able to return to their rocky…
-
How plants sense electric fields
The cells of plants, animals and humans all use electrical signals to communicate with each other. Nerve cells use them to activated muscles. But leaves, too, send electrical signals to other parts of the plant, for example, when they were injured and are threatened by hungry insects."We have been asking ourselves for many years what…
-
After decades of clean up attempts, world's lakes still suffer from phosphorus pollution
Leading scientists warn: Phosphorus pollution is a major concern. We need to speed up recovery treatments of lakes – or accept poor freshwater quality. In a series of studies published in a special issue of the journal Water Research, leading scientists assess how to control phosphorus pollution in lakes.- In 40 % of Europe's lakes the…
-
Researchers assess heatwave risks associated with climate change
Combining climate and mortality data, researchers have estimated that 315 deaths in Greater London and 735 deaths in Central Paris can be strongly linked to the 2003 heatwave that set record-breaking temperatures across Europe. Taking their analysis a step further, they determine that 64 (± 3) deaths from the London dataset and 506 (± 51)…
-
Frogs that can take the heat expected to fare better in a changing world
Amphibians that tolerate higher temperatures are likely to fare better in a world affected by climate change, disease and habitat loss, according to two recent studies from the University of California, Davis.Frogs are disappearing globally, and the studies examine why some survive while others perish. The studies reveal that thermal tolerance — the ability to…
-
NASA's airborne mission to explore the global atmosphere
Ice sheets, deserts, rivers, islands, coasts and oceans — the features of Earth's surface are wildly different, spread across a vast geography. The same is true for Earth's thin film of atmosphere and the mix of gases it holds, although the details are invisible to human eyes. Pollutants emitted to the atmosphere — soot, hydrocarbons,…
-
Insect populations in sharp decline
Every spring since 1989, entomologists have set up tents in the meadows and woodlands of the Orbroicher Bruch nature reserve and 87 other areas in the western German state of North Rhine-Westphalia. The tents act as insect traps and enable the scientists to calculate how many bugs live in an area over a full summer…
-
Weathering of rocks by mosses may explain climate effects during the Late Ordovician
During the Ordovician period, the concentration of CO2 in the earth's atmosphere was about eight times higher than today. It has been hard to explain why the climate cooled and why the Ordovician glaciations took place. A new study, published in Nature Communications, shows that the weathering of rock caused by early non-vascular plants had the…