carbon dioxide

Eating Bugs Helps Curb Both Hunger And Climate Change

The Food and Agriculture Organization of the United Nations recently suggested that eating bugs (yes, insects) could help feed the world’s fast-growing population. Along these lines, Anna Jansson, professor of animal science at the Swedish University of Agricultural Sciences, has shown how nutrient-rich insects can make a big contribution to diet in poor countries. Surprisingly, they can also help […]

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How Bringing Back The Great Whale Can Limit Climate Change (VIDEO)

The oceans are huge carbon sinks for the world. Fish and whales comprise only a tiny part of their overall biomass. Nevertheless, studies have shown that fishing and whaling by humans have altered the ocean’s carbon storage and sequestration capabilities by causing a change in the food chain, or a trophic cascade. As naturalist and

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World Forest Problems Include Deadly Fragmentation

  When environmentalists, farmers, and loggers speak about forests, the discussion usually revolves around the issue of deforestation, which is one of the largest contributors to climate change. As James Ayre pointed out in a recent PlanetSave article, forest cover estimates are currently a subject of hot debate because a new satellite imaging study contradicts the

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Epic Mission 31 Night Dive Unlocks Secrets Of “Inner Space” (videos)

Underwater habitat at Aquarius Reef Base (photo provided to Flickr courtesy of Stephen Frink, www.stephenfrink.com/) On July 2, 2014, ocean scientists who have spent the last 31 days living in an ocean-floor habitat 63 feet underwater will decompress and return to the surface. They’ve been down there on “Mission 31” intensively studying ocean acidification and climate

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Watch Cousteau Ocean Climate Study LIVE in June! (videos)

Fabien Cousteau, ocean explorer and grandson of famed Jacques-Yves Cousteau, began a historic subsea mission on Sunday. He’s studying ocean impacts of climate change (especially acidification, which occurs as the sea absorbs atmospheric carbon dioxide), effects of plastic and other pollution on marine life, and overfishing of marine resources, which diminishes the ocean’s biodiversity. You

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"Clean Gas" More Dangerous Than Coal, Industry Expert Tells TV

US “clean gas” wells in operation (Irekia-Eusko Jaurlaritza in blogs.lse.ac.uk) Turns out that just about everyone (including President Obama) has been hugely underestimating the methane pollution levels of so-called “clean gas.” The booming American economy now seems to come at a greater cost than we originally thought when we found out that natural gas produces

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National Climate Assessment Pulls No Punches About US Options

(All figures are from the 2014 National Climate Assessment draft.) Later today (Tuesday, May 6), at 8 a.m. EDT, the National Climate Assessment and Development Advisory Committee of experts meets by conference call to approve the final version of the Third National Climate Assessment. The gist of their message, as Suzanne Goldenberg of The Guardian

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CO2-Free Study Finds Wind/Solar Power Cheaper Than Nuclear Or CCS

Agora Energiewende this week released the results of a cost analysis of four different CO2-free power scenarios in Europe. Says Patrick Graichen, executive director of Agora: Wind and solar systems will dominate the power system in increasingly more countries. The battle for the cheapest CO2-free power mix is decided. In the future wind and solar

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Refitted Tunnel Shelter Farms Zero Carbon Veggies

Premium hydroponic-grown, pesticide-free vegetables and herbs growing in the U.S. Gotham Greens facility (from eponline.com). Two entrepreneurs have recently made London the home of a very creative architectural reuse for food production—underground. Steven Dring, a former executive with Bunzl, an international provider of food-related products and services, and his friend and business partner Richard Ballard,

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UN Nails Forest Risks, Strategy In Warsaw With REDD+

At the late November meeting of UN climate delegates in Warsaw, negotiators from Canada–once a strong supporter of fast-start financing to limit greenhouse gas emissions from developing countries–and Australia, now led by a rashly conservative government, sat on their hands. Reeling from the costs of mitigation at Fukushima and a stopgap return to fossil fuels,

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"Lousy, Spoilt, and Defiled Planet" Climate Talks Begin In Warsaw

Officials open the 2013 UNFCCC meetings with determination and louder warnings…. (Photo source: http://ow.ly/qL43P) It’s time for the governments of the world to struggle with climate change policy again. Every year, late in November and early in December, representatives of 195 nations gather for two weeks to try to negotiate global responses to the increasingly

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Shutter 1.2% Of Power Plants, Cut Carbon Costs By 20%

The nation’s most-polluting power plant, Georgia Power Company’s Plant Scherer in Juliette, Georgia, emits more carbon dioxide than all of Maine’s energy emissions. Here’s more from Environment America: On September 10, the Environment America Research & Policy Center, an independent nonprofit, and the Frontier Group presented a mighty appealing fast track toward limiting the U.S.

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Cutting Emissions Of Certain Pollutants Could Slow Down Sea Level Rise

New research has shown that rising sea levels could be greatly slowed if certain fast cycling pollutants are cut from the numerous emissions being pumped into the atmosphere. According to the research, published in the journal Nature Climate Change this week, cutting levels of methane, soot, refrigerants, and gases that lead to the formation of ground-level ozone,

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Siberian Caves Point To Devastating Future Thawing And CO2 Release

A team of scientists from Britain, Russia, Mongolia, and Switzerland have released a report which finds that evidence obtained from Siberian caves suggest that a global temperature rise of 1.5 degrees Celsius could result in permanently frozen ground end up thawing across a massive swathe of Siberia, threatening a release of carbon dioxide. Such a

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Managing Emissions Two-Degree Target Growing Ever More Difficult

  With each year that passes us by the carbon dioxide emission reductions required to limit global warming to a 2°C increase are becoming more and more difficult to reach according to new figures reported today in the latest Global Carbon Project calculations published today in the advanced online edition of the journal Nature Climate Change. “A

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Thawing Permafrost Bad News for Global Warming

Permafrost covers almost a quarter of the northern hemisphere, and according to recent calculations contains 1,700 gigatonnes of carbon – that’s an amount twice what is currently in our atmosphere. A new report released by the UN Environment Programme (UNEP) entitled ‘Policy Implications of Warming Permafrost’ warns that the release of this permafrost carbon could seriously amplify

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Mars Reconnaissance Orbiter Detects Dry Ice on Red Planet

NASA’s Mars Reconnaissance Orbiter has provided scientists with the clearest evidence to date of carbon-dioxide snowfalls on Mars, revealing the only known example of carbon-dioxide snow falling anywhere in our solar system. Frozen carbon-dioxide is better known here on Earth as dry ice, and requires temperatures of around minus minus 125 Celsius (193 degrees Fahrenheit), much, much colder than what

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Planet Earth Still Absorbing Half of our Greenhouse Gases

Planet Earth’s oceans, forests, and other assorted ecosystems are continuing to soak up approximately half the carbon dioxide we humans pump into the atmosphere every day, even as those emissions continue to increase, once again belying the very little knowledge we currently have of our planet. “Globally, these carbon dioxide ‘sinks’ have roughly kept pace

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Rise in Temperature and Carbon Dioxide Follow One Another Closely

New research from the Niels Bohr Institute at the University of Copenhagen has shown that the rise in temperature after the last ice age into the warmer intergrlacial period was followed closely by a rise in atmospheric carbon dioxide, contrary to previously held opinion. The research was published in the journal Climate of the Past and showed

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Slow Global Warming, Improve Health, Boost Agriculture, NOW!

NASA has released a study that highlights 14 key air pollution control measures that could slow the pace of global warming, improve health, and boost agricultural production if they were implemented. This Flickr slideshow highlights key emission control strategies that could help limit the release of black carbon and methane into the atmosphere. NASA’s Drew

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