Most precise dates yet suggest comet or asteroid impact was last straw for dinosaurs
While many assume that a comet or asteroid impact killed off the dinosaurs, the actual dates of the impact and extinction are imprecise enough that some have questioned the connection. UC Berkeley and Berkeley ...
Study rebuts hypothesis that comet attacks ended 9,000-year-old Clovis culture
(Phys.org)—Rebutting a speculative hypothesis that comet explosions changed Earth's climate sufficiently to end the Clovis culture in North America about 13,000 years ago, Sandia lead author Mark Boslough ...
Earth still absorbing about half carbon dioxide emissions produced by people: study
Earth's oceans, forests and other ecosystems continue to soak up about half the carbon dioxide emitted into the atmosphere by human activities, even as those emissions have increased, according to a study ...
Comet cause for climate change theory dealt blow by fungus
(PhysOrg.com) -- A team of scientists - led by Professor Andrew C Scott of the Department of Earth Sciences at Royal Holloway, University of London - have revealed that neither comet nor catastrophe were the ...
Killer algae a key player in mass extinctions
Algae, not asteroids, were the key to the end of the dinosaurs, say two Clemson University researchers. Geologist James W. Castle and ecotoxicologist John H. Rodgers have published findings that toxin producing ...
Study grapples with ocean climate stress challenge
(Phys.org) —Researchers are struggling to solve the challenge of predicting climate change impacts on marine environments.
Re-routing flights could reduce climate impact, research suggests
Aircraft can become more environmentally friendly by choosing flight paths that reduce the formation of their distinctive condensation trails, new research suggests.
Antarctic species dwindle as icebergs batter shores year-round
The Antarctic shore is a place of huge contrasts, as quiet, dark, and frozen winters give way to bright, clear waters, thick with algae and peppered with drifting icebergs in summer. But as the planet has ...
Study shows importance of European farmers adapting to climate change
A new Stanford study finds that due to an average 3.5 degrees Fahrenheit of warming expected by 2040, yields of wheat and barley across Europe will drop more than 20 percent.
Study provides new metric for comparing the greenhouse gases methane and carbon dioxide
In formulating policies to address greenhouse gas emissions, or evaluating the potential impact of different energy technologies on global climate change, one of the thorniest issues is how to account for ...
Scientists find missing piece of air particle equation hiding in the walls
Laboratory chamber walls have been stealing vapors, causing researchers to underestimate the formation of secondary organic aerosol in the atmosphere.
Meeting climate targets may require reducing meat and dairy consumption
Greenhouse gas emissions from food production may threaten the UN climate target of limiting global warming to 2 degrees Celsius, according to research at Chalmers University of Technology, Sweden.
Insect and plant communities display surprising endurance against heat
(Phys.org) —A study that transplanted a selection of Australian native plant species to a warmer climate has discovered that although changing environmental conditions impacts individual insect species, ...
Climate risk from wind farms is minimal, study says
Concerns that giant wind farms aimed at easing climate change in fact aggravate the problem are misplaced, a scientific study said on Tuesday.