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These bananas in India are grown for their edible seed as well as their flesh. To increase food security in a warming world, we must increase the diversity of our food crops. Photo: VitaminGreen via Flickr.

In a warming world, food security means crop diversity

Sayed Azam-Ali

10th October 2014

The global homogenisation of food carries costs, writes Sayed Azam-Ali - notably the world's the increasing dependence on just a few 'elite crops', creating a precarious food system vulnerable to climate change. We must diversify our diets, and the crops that that feed us. more...
An intensive feedlot for beef cattle - a key stage in the US's amazingly high emissions from beef production. Photo: Socially Responsible Agricultural Project via Flickr.

The Carbon Underground: reversing global warming

Ronnie Cummins / Organic Consumers Association

21st September 2014

As millions join in climate marches and other actions around the world, writes Ronnie Cummins, the 'mainstream' focus on energy is missing the 55% of emissions that come from mismanaged land and destroyed forests. The key is to replace industrial agriculture worldwide with productive, regenerative organic farming that puts carbon back in the soil. more...
The end of fossil fuel emissions is not the end of global warming! Florida Power & Light's smokestacks come down at Riviera Beach. Photo: Kim Seng via Flickr.

The end of fossil fuels is not the end of global warming

Andrew Lockley

17th September 2014

Of course we must quit burning fossil fuels and welcome a renewable future, writes Andrew Lockley. But that's not going to stop the Earth from warming, indeed the reverse. So ... we need some tricks up our sleeve to deal with it - in a word, geoengineering. Because it will save our lives, and our planet. more...
CIAT cassava specialist Dr. Tin Maung Aye studies cassava crops in NE Thailand, affected by pest and disease outbreaks. Photo: Neil Palmer (CIAT) / Wikimedia Commons.

Farm pests' global advance threatens food security

2nd September 2014

Tim Radford

Agricultural pests - viruses, bacteria, fungi, blights, mildews, rusts, beetles, nematodes, flies, mites, spiders and caterpillars - are spreading thanks to trade, travel and global warming, writes Tim Radford. The world faces a dire future of increased crop losses and growing insecurity. more...
The Aedes aegypti mosquito - vector for dengue disease - biting a human. Photo: US Department of Agriculture via Wikimedia Commons.

Europe’s warming brings risk of dengue fever

Tim Radford

31st August 2014

As greenhouse gases raise temperatures in Europe, writes Tim Radford, British researchers warn that the risk is increasing of the arrival of dengue fever and other mosquito-borne killer tropical diseases. more...
Observed and simulated changes in Earth’s heating rate since 1985. Image: Allan et al., Author provided.

Heat accumulating in the deep oceans has put global warming on pause

Richard Allan

26th August 2014

Since 2000 global surface temperatures have risen less than expected, a fact seized on by climate change 'sceptics'. But indications are that the surplus heat has been building up all along, writes Richard Allan - in deep oceans where it does not influence observable climate. Not yet, anyway. more...
Wylfa nuclear power station on Anglesey, Wales. Photo: Joe Dunckley via Flickr.

Nuclear power is no answer to global warming

Ian Fairlie

10th July 2014

If we're serious about cutting CO2 emissions, there's no place for nuclear power, writes Ian Fairlie - because it's the least cost-effective way to do it. By far the best way is to improve energy efficiency. But tell the Government the truth, and it'll close you down. more...
Improving public transport is one of the key measures that could cut GHG emissions, increase 'gross world product' by $2.6 trillion and save a million lives. Photo: Mumbai bus by Patrik M. Loeff via Flickr.

World Bank: tackle global warming and add $2 trillion to global economy, save a million lives

Chris Rose

30th June 2014

Tackling global warming with better public transport, increased energy efficiency, renewable energy, clean cookstoves, better waste management could increase global GDP by $2.6 trillion. The alternative is growing risk from harshening climates ... more...
Beware wolves in sheep's clothing! Photo: public domain.

Beware environmental wolves in sheep's clothing!

William Laurance

9th June 2014

What do the Australian Environment Foundation, the Renewable Energy Foundation and the Global Warming Policy Foundation have in common? They are all fiercely anti-environment, writes William Laurance - and we must beware their 'eco-doublespeak'. more...
Melting away: an aerial view of the margin of Greenland's threatened ice sheet. Photo: Hannes Grobe / Alfred Wegener Institute via Wikimedia Commons.

Greenland's glaciers 'more vulnerable' to rapid melting

Tim Radford

27th May 2014

Greenland's glaciers are more vulnerable to global warming than had previously been feared, reports Tim Radford, as ice bodies are undercut by seawater. The threat of rapidly rising sea levels just went up yet another notch. more...
Can we talk about climate change now? Flooded Oxford residents take to the streets. Among their problems, sewage contamination of flood waters and non-flushing toilets. Photo: Adam Ramsay.

UK winter floods - more to come with hotter oceans

Simon Redfern

4th May 2014

A massive citizen-powered climate simulation conclusively links the UK's winter floods to global warming, writes Simon Redfern. Over 33,000 climate models running in 'screen saver' mode show a powerful connection between hotter oceans and UK rainfall. more...
An early victim of climate change? Aleppo, 29th January 2014. Photo: Freedom House via Flickr.com.

The melting Arctic, and revolutions to come

Robert & Jack Hunziker

26th April 2014

The world is facing the imminent threat of severe climate disruption from the warming Arctic, write Robert & Jack Hunziker, leading to a global crisis. But the response of the powerful is only to increase fossil fuel exploitation - and damn the consequences. more...

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Swamp about 30 miles north of Jackson, Mississippi, USA. Photo: Todd Hall via Flickr.com.

Warmer freshwater ecosystems emit more methane

Tim Radford

22nd March 2014

Scientists think the amount of methane emitted to the atmosphere from freshwater ecosystems will increase as the climate warms, reports Tim Radford. And that will trigger further warming. more...
Sky pilot, alpine buttercup and old-man-of-the-mountain in full bloom in the Rocky Mountains of Colorado. Photo: John Holm / Wikimedia Commons.

Rockies flora signal warming times

Tim Radford

20th March 2014

An intensive study of the flora of one meadow in the Rocky Mountains of Colorado over 39 years reveals a consistent long term pattern of change: first flowers 6 days per decade earlier, last flowers 3 days per decades later. more...
Can we talk about climate change now? Flooded Oxford residents take to the streets. Among their problems, sewage contamination of flood waters and non-flushing toilets. Photo: Adam Ramsay.

After the deluge - Britain's new politics of climate change

Jonathon Porritt

20th February 2014

Floods, giant waves and billions of pounds of destruction to the UK's homes, businesses and key national infrastructure could revolutionise climate politics, writes Jonathon Porritt. But no thanks to the increasingly pathetic BBC! more...
Preservation of the fragile Arctic sea ice is essential if we are to prevent abrupt climate change. Photo: NASA.

We must prevent abrupt climate change

John Nissen

8th February 2014

Weird weather from serious flooding in the UK to acute cold and drought in the USA follows from the warming Arctic and disruptions to the jet stream, writes John Nissen. We must act now to prevent sudden changes in global climate. more...
Global temperatures by year. Image: NASA Earth Observatory.

2013 - the world's temperature kept on rising

Sophie Morlin-Yron

27th January 2014

Global temperatures in 2013 sustained the global warming trend, while the year recorded the highest levels of carbon dioxide yet. Sophie Morlin-Yron reports on NASA's latest findings. more...

Warming climate will bring more extreme 'El Nino' events

Tim Radford

2nd January 2014

Rising global temperatures are likely to double the frequency of the most severe El Niños - the periodic atmospheric disruptions which affect weather across the globe. Tim Radford reports more...

UKIP to ban 'all teaching of global warming'

The Ecologist

17th January 2014

The United Kingdom Independence Party will ban the teaching of climate change in schools, if it wins the 2015 elections, says UKIP education spokesman Derek Clark MEP. more...
Edelweiss (Leontopodium alpinum). Photo: Paolo via Flickr.com.

Swiss wildlife climbing up the mountains

Tim Radford

16th January 2014

Wildlife in Switzerland is seeking relief from warming temperatures by moving higher up the mountains, reports Tim Radford. more...
M/V Akademik Shokalskiy at anchor in the Penola Strait, off Petermann Island, in Antarctica. Photo: AntarcticBoy via Flickr.com.

Global warming scientists stuck in Antarctic summer freeze?

Stephan Lewandowsky

7th January 2014

Climate change skeptics have seized on the tale of the 'global warming scientists' stranded in Antarctica by a summer freeze-up. But Stephan Lewandowsky says there is more to the story than meets the eye ... more...
Protestors hang a giant banner to protest UBS's financing of mountain-top removal coal mining. Photo: Hands off Appalachia.

'UBS Eight' still in jail for fighting mountain-top removal

The Ecologist

27th November 2013

The battle against coal mining by Mountain Top Removal has been fought by the people of Appalachia over generations. The campaigners' target is now Swiss bank UBS, the main financier of the destruction. more...

The Man Who Plants Trees

Edgar Vaid

Edgar Vaid reviews the biography of a man who, after a supernatural experience, takes it upon himself to clone species of tree that he deems 'special'; trees that he believes may be crusaders in the fight against global warming ... more...

If next summer is rained off, blame the melting Arctic

James Screen

November 5th, 2013

Fed up with rainy summers? Blame global warming, and specifically, the melting Arctic. But for the future, nothing is certain. more...

Greenhouse gases alone are causing unprecedented Arctic warming

October 29th, 2013

A new University of Colorado Boulder study shows that human influence alone is responsible for warming in the Arctic. more...

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