Nearly a decade after being logged, vegetation in forested areas severely burned by California's Cone Fire in 2002 was relatively similar to areas untouched by logging equipment. The findings of a U.S. Forest Service study shed light on how vegetation responds to severe wildfire and whether further disturbances from logging affect regrowth.
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Human activity degrades Natural World Heritage Sites
A report published in the journal Biological Conservation finds that recent increases in human pressure and forest loss are causing the degradation of over 100 Natural World Heritage Sites (NWHS) globally.
Change in astronaut's gut bacteria attributed to spaceflight
Northwestern University researchers studying the gut bacteria of Scott and Mark Kelly, NASA astronauts and identical twin brothers, as part of a unique human study have found that changes to certain gut “bugs” occur in space.
The Northwestern team is one of 10 NASA-funded research groups studying the Kelly twins to learn how living in space for a long period of time -- such as a mission to Mars -- affects the human body. While Scott spent nearly a year in space, his brother, Mark, remained on Earth, as a ground-based control.
China to protect areas of high ecological importance identified by Stanford researchers
China leads the world in greenhouse gas emissions. Its biggest cities are shrouded in smog. And the country’s population is 1.4 billion people and growing. At least to the rest of the world, China isn’t known as a leader in environmental mindfulness.
A new study confirms: Pregnant women should avoid liquorice
Liquorice and its natural sweetener, glycyrrhizin, can have long-term harmful effects on the development of the fetus.
Flipping the switch on ammonia production
Nearly a century ago, German chemist Fritz Haber won the Nobel Prize in Chemistry for a process to generate ammonia from hydrogen and nitrogen gases. The process, still in use today, ushered in a revolution in agriculture, but now consumes around one percent of the world’s energy to achieve the high pressures and temperatures that drive the chemical reactions to produce ammonia.
Today, University of Utah chemists publish a different method, using enzymes derived from nature, that generates ammonia at room temperature. As a bonus, the reaction generates a small electrical current. The method is published in Angewandte Chemie International Edition.