Category Archives: Environment

A Roly-Poly Pika Gathers Much Moss

High-Fiber Salad Bar May Help Lagomorphs Survive Climate Change

In some mountain ranges, Earth’s warming climate is driving rabbit relatives known as pikas to higher elevations or wiping them out. But University of Utah biologists discovered that roly-poly pikas living in rockslides near sea level in Oregon can survive hot weather by eating more moss than any other mammal.

“Our work shows pikas can eat unusual foods like moss to persist in strange environments,” says biology professor Denise Dearing, senior author of the new study, published online on Dec. 18, 2013 in the February 2014 issue of Journal of Mammalogy. “It suggests that they may be more resistant to climate change than we thought.” (more…)

Read More

Hack the planet? Geoengineering research, ethics, governance explored

Hacking the Earth’s climate to counteract global warming – a subject that elicits strong reactions from both sides – is the topic of a December special issue of the journal Climatic Change. A dozen research papers include the most detailed description yet of the proposed Oxford Principles to govern geoengineering research, as well as surveys on the technical hurdles, ethics and regulatory issues related to deliberately manipulating the planet’s climate. (more…)

Read More

New Study Reveals the Biomechanics of How Marine Snail Larvae Swim

Equipped with high-speed, high-resolution video, scientists have discovered important new information on how marine snail larvae swim, a key behavior that determines individual dispersal and ultimately, survival.

Researchers from the Woods Hole Oceanographic Institution (WHOI) and Stony Brook University grew Atlantic slipper limpet larvae, which are slightly larger than a grain of sand, and recorded microscopic video of them swimming. In previous studies, it has been commonly thought that larvae swim faster when they beat their hair-like cilia faster. However, this new microscopic video and research shows that this is not the case. (more…)

Read More

2013 – Jahr wachsenden Engagements für Agrar- und Energiewende. Im Wahlkampf verquere “Veggie-Day”- und Mautdebatten. Hochwasser und leider nur Trippelschritte beim Klimaschutz

Berlin: Für den Bund für Umwelt und Naturschutz Deutschland (BUND) stand das zurückliegende Jahr ganz im Zeichen großer Demonstrationen für eine andere Agrar- und Energiepolitik. Das Jahr 2013 hat gezeigt, dass sich die Zivilgesellschaft wieder deutlich sichtbar einmischt, wenn es um den Schutz unserer Lebensgrundlagen geht”, sagte der BUND-Vorsitzende Hubert Weiger in einer Jahresbilanz.

Anfang 2013 seien in Berlin schon zum dritten Mal anlässlich der “Grünen Woche” 25.000 Menschen gegen Massentierhaltung, den Einsatz der Gentechnik in der Landwirtschaft und Umweltschäden durch giftige Pestizide auf die Straße gegangen. Und Ende November hätten 16000 Demonstranten das Bundeskanzleramt umzingelt und gegen den Weiterbetrieb von Atom- und Kohlekraftwerken demonstriert. “Die Menschen wissen, was sich in den Tierfabriken abspielt, sie kennen die irreparablen Klimaschäden aus der Nutzung fossiler Energiequellen und sie verlangen mehr Entschlossenheit bei der Agrar- und Energiewende. Auf Veranstaltungen und Kundgebungen, in Blogs, über Twitter und Facebook wird von den Regierenden eingefordert, Lösungen für die Umweltprobleme zu finden anstatt mit Nebensächlichkeiten davon abzulenken”, sagte Weiger. (more…)

Read More

Limited food may be significantly changing Great Lakes ecosystems

ANN ARBOR — Declines of the food resources that feed lake organisms are likely causing dramatic changes in the Great Lakes, according to a new study.

The study, led by the U.S. Geological Survey and co-authored by three University of Michigan researchers, found that since 1998, water clarity has been increasing in most Great Lakes, while phytoplankton (the microscopic water organisms that feed all other animals), native invertebrates and prey fish have been declining. These food web changes fundamentally affect the ecosystem’s valuable resources and are likely caused by decreasing levels of lake nutrients, and by growing numbers of invasive species such as zebra and quagga mussels. (more…)

Read More

Database Tracks Toxic Side Effects of Pharmaceuticals

Sometimes the cure can be worse than the disease. Pharmaceutical drugs are known for their potential side effects, and an important aspect of personalized medicine is to tailor therapies to individuals to reduce the chances of adverse events. Now researchers from North Carolina State University have updated an extensive toxicology database so that it can be used to track information about therapeutic drugs and their unintentional toxic effects.

“Environmental science actually shares a common goal with drug makers: to improve the prediction of chemical toxicity,” says Dr. Allan Peter Davis, lead author of a paper on the work and the biocuration project manager of the Comparative Toxicogenomics Database (CTD) in NC State’s Department of Biological Sciences. (more…)

Read More