Climate Change
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Effect of increasing CO2 on the terrestrial carbon cycle

Important new study on tropical forest uptake of CO2 in PNAS http://t.co/Kx9nk5kB7R 1/2
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How Cities Can Help Fight Climate Change - Huffington Post

How Cities Can Help Fight Climate Change - Huffington Post | Climate Change | Scoop.it
The new proposals to combat climate change announced today by President Obama will leverage innovative climate strategies which are already at work and which have been proven effective.
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Rainforest Fragmentation Boosts Greenhouse Effect: Adds 200 Million Tonnes of Atmospheric Carbon Yearly

Rainforest Fragmentation Boosts Greenhouse Effect: Adds 200 Million Tonnes of Atmospheric Carbon Yearly | Climate Change | Scoop.it
Rainforest fragmentation research reveals fifth of overall carbon emission numbers have been ignored in global outlook
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The future of food and farming depends on climate action today

The future of food and farming depends on climate action today | Climate Change | Scoop.it
Agriculture, in particular, is at risk from climate change
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Global CO2 pricing scheme surfaces ahead of 2015 climate summit - EurActiv

Global CO2 pricing scheme surfaces ahead of 2015 climate summit - EurActiv | Climate Change | Scoop.it
A team of scholars at Paris Dauphine University has proposed an international carbon trading system, whereby countries with the highest average CO2 emissions pay the most.
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Global Warming Simulation, Global Warming Interactive, Climate Change Interactive - National Geographic

Global Warming Simulation, Global Warming Interactive, Climate Change Interactive - National Geographic | Climate Change | Scoop.it
Learn about the impacts of Global Warming at National Geographic. Get facts, news, wallpapers, watch videos, and learn about solutions.
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As Climate Change Warms Oceans, Fish Move Toward Poles - The Weather Channel

As Climate Change Warms Oceans, Fish Move Toward Poles - The Weather Channel | Climate Change | Scoop.it
Climate change — and more specifically, warmer ocean temperatures — could result in a “large-scale shift of marine fish and invertebrates,” according to a new study out of the University of British Columbia.
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He Sat Down In A Cold, Grey Room And Proceeded To Scare The Hell Out Of Me

He Sat Down In A Cold, Grey Room And Proceeded To Scare The Hell Out Of Me | Climate Change | Scoop.it
Things that matter. Pass 'em on.
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Poland says will veto EU CO2 proposal if it stays unchanged - Reuters

WARSAW, Oct 16 (Reuters) - Poland will veto the EuropeanUnion executive's proposal for tougher targets on reducinggreenhouse gas emissions at a summit this month unless theproposals are changed, Polish...
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Flood resistant housing | Climate change | Practical Action

Flood resistant housing | Climate change | Practical Action | Climate Change | Scoop.it
Simple design changes improve houses enough to be unaffected by flooding and resulting dangers to livelihoods
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Adapting rice to saltier water | Climate change | Practical Action

Adapting rice to saltier water | Climate change | Practical Action | Climate Change | Scoop.it
Using forgotten indigenous varieties of rice to grow in saltier water
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Coal is 'good for humanity', says Tony Abbott at mine opening

Coal is 'good for humanity', says Tony Abbott at mine opening | Climate Change | Scoop.it
Prime Minister Tony Abbott says Australia's coal industry has a "big future, as well as a big past" and predicted it will be the world's principal energy source for decades to come.
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Climate change predictions are 'greatly exaggerated', claims study

Climate change predictions are 'greatly exaggerated', claims study | Climate Change | Scoop.it
The paper was led by Professor David Legates from University of Delaware. This chart shows the study's observations (green) compared to IPCC predictions (red).
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How Cities Can Help Fight Climate Change - Huffington Post

How Cities Can Help Fight Climate Change - Huffington Post | Climate Change | Scoop.it
The new proposals to combat climate change announced today by President Obama will leverage innovative climate strategies which are already at work and which have been proven effective.
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What is Greenhouse Effect?

What is Greenhouse Effect? | Climate Change | Scoop.it
The atmosphere is a blanket of gases around the Earth. Because of pollution, there are more and more gases in the atmosphere. The Earth is getting hot...
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How cities can save trillions, curb climate change, and improve public health | TheCityFix

How cities can save trillions, curb climate change, and improve public health | TheCityFix | Climate Change | Scoop.it

Reducing this environmental impact may seem daunting, but a new report, Better Growth, Better Climate, finds that there are several actions city leaders can take that can reduce emissions while driving economic growth. The report finds that connected, compact cities could save $3 trillion in infrastructure investments over the next 15 years. Not only that, but they can also curb global climate change and yield immediate local benefits for air quality, health, and quality of life.


Via Kim Flintoff
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25 Devastating Effects Of Climate Change - Business Insider

25 Devastating Effects Of Climate Change - Business Insider | Climate Change | Scoop.it
No corner of the world is safe.
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Teachable moments about climate change

Teachable moments about climate change | Climate Change | Scoop.it
First-hand experience of extreme weather often makes people change their minds about the realities of climate change.

Via SustainOurEarth
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Progress towards sustainable, biological nitrogen fixation - Plant Science

Progress towards sustainable, biological nitrogen fixation - Plant Science | Climate Change | Scoop.it

Professor Ray Dixon from the John Innes Centre has been working with Chinese scientists to genetically engineer bacteria that could reduce farmers’ reliance on industrial nitrogen (N) fertilisers.

Plants need nitrogen to grow, and obtain this in the form of fixed N from the soil. However, in modern, intensive agricultural systems soil N is rapidly depleted, which necessitates the application of N fertilisers. Although effective at increasing crop yields and cheap to produce, these are associated with a number of environmental drawbacks such as pollution caused by nitrates leaching from the soil, ammonia emission, and the release of nitrous oxide; a potent greenhouse gas. 

Plants can get some of the nitrogen they need from nitrogen-fixing bacteria present in the soil, or in the case of specialised plants such as legumes, by forming symbiotic associations with bacteria that fix nitrogen in nodules on their roots. Nitrogen-fixing bacteria possess one or more of three types of nitrogenase enzymes that convert atmospheric nitrogen into ammonium. The most common version contains the metal molybdenum, but alternative vanadium and iron-dependent nitrogenases also exist.

Recently published in the journal Proceedings of the National Academy of Sciences of the USA, the goal of this research was to engineer an artificial iron-dependent nitrogen-fixing system inEscherichia coli, a bacterium that does not normally fix nitrogen from the air.

Professor Dixon said: “Nitrogenase enzymes are complex structures encoded by several different genes, and the activity of these enzymes are supported by other genes scattered about the genome. It is particularly difficult to determine how many genes are required for nitrogen fixation in an organism that contains three different types of the enzyme. Instead, we used E. coli as a chassis to genetically engineer a functional, iron-dependent nitrogenase. We discovered that only a few genes are required to make this enzyme, which will hopefully make the system easier to engineer in other bacteria and even perhaps even in crops, since plant mitochondria and chloroplasts are deficient in molybdenum.”

This research marks a first step towards engineering new N-fixing bacteria that could potentially be used to create synthetic symbioses between microbes and plants.  This could provide abiologically sustainable source of N for crops, particularly in areas of the world where soils are deficient in molybdenum. It also paves the way for further research to engineer plants that, one day, might be able to fix their own nitrogen directly from the atmosphere. 


Via Jean-Michel Ané
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When Climate Change Has Already Come - CityLab

When Climate Change Has Already Come - CityLab | Climate Change | Scoop.it
The country's first institute of adaptation science will help Norfolk, Virginia, deal with its steadily rising waters.
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▶ Drought-Stricken California Considers Upgrading Water System - VOA

Published on Oct 15, 2014
A three-year drought in California is causing a water shortage that is being felt on farms and cities throughout the state. As VOA's Mike O’Sullivan reports, water experts, consumers and farmers say California needs to make changes to cope with an uncertain future.


Via Andrew van Zyl
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Surviving freak freezes | Climate change | Practical Action

Surviving freak freezes | Climate change | Practical Action | Climate Change | Scoop.it
Simple yet effective ideas to improve the livelihoods of communities struggling to cope with extreme weather conditions
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UN Climate Summit - UN Climate Summit 2014

UN Climate Summit  - UN Climate Summit 2014 | Climate Change | Scoop.it
United Nations secretary-general Ban Ki-moon's climate summit 2014, New York
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