Stories written by Stephen Leahy
Stephen Leahy is the lead international science and environment correspondent at IPS, where he writes about climate change, energy, water, biodiversity, development and native peoples. Based in Uxbridge, Canada, near Toronto, Steve has covered environmental issues for nearly two decades for publications around the world. He is a professional member of the International Federation of Journalists, the Society of Environmental Journalists and the International League of Conservation Writers. He also pioneered Community Supported Environmental Journalism to ensure important environmental issues continue to be covered. | Web | Twitter |

World Headed for a High-Speed Carbon Crash

If global carbon emissions continue to rise at their current rate, humanity will eventually be left with no other option than a costly, world war-like mobilisation, scientists warned this week.

The Sickest Places in the World

Parts of Indonesia, Argentina and Nigeria are among the top 10 most polluted places on the planet, according to a new report by U.S. and European environmental groups.

No Safe Havens in Increasingly Acid Oceans

Oil, gas and coal are contaminating the world's oceans from top to bottom, threatening the lives of more than 800 million people, a new study warns Tuesday.

The Coming Plague

A climate plague affecting every living thing will likely start in 2020 in southern Indonesia, scientists warned Wednesday in the journal Nature. A few years later the plague will have spread throughout the world's tropical regions.

Building a Better World, One Block at a Time

One evening in the small village of Ashton Hayes in Cheshire, England, someone started a conversation about climate change and energy at the local pub. It was 2005. Two years later, residents had cut their carbon dioxide emissions and energy costs by 20 percent.

Mayors Leading an Urban Revolution

With presidents and prime ministers failing to take meaningful action to avert a planetary-scale climate crisis, the mayors of cities and towns are increasingly stepping up to enact changes at the local level.

CO2 Reshaping the Planet, Meta-Analysis Confirms

Greenland will eventually truly become green as most of its massive ice sheet is destined to melt, the authoritative U.N. Intergovernmental Panel on Climate Change (IPCC) reported Friday.

Making Local People Stewards of the Earth

The lack of land rights is a crisis not just for local people but for all of humanity, warned organisers at an international conference here.

If You Want to Conserve Biodiversity, Protect Latin America

A team of scientists who analysed the richness of plant species around the world concluded that the ecosystems in need of immediate protection in order to meet the 2020 conservation goals set by the Convention on Biological Diversity are largely concentrated in Latin America.

Dwindling Water Supplies Make Every Drop Count

Drought and chronic water shortages played a significant role in sparking Syria's civil war and in unrest throughout much of the Middle East, water experts now believe.

A Stark Choice: Extreme Heat or Dirty Fuels

Two reports released Wednesday reveal the dangerous gap between science and politics. New climate research shows that extreme events such as the severe heat wave in the U.S. last year will double in 2020, increase 400 percent by 2040, and then get far worse without significant carbon reductions.

Climate Change Promises Tough Times for Asia and Africa – Report

Extreme heat, flooding and water and food shortages will rock South Asia and Africa by 2030 and render large sections of cities inhabitable, if the world continues to burn huge amounts of coal, oil and gas, the World Bank is warning.

Developing Countries Lead Global Shift to Green Energy

Emerging economies such as Mexico and India are shifting energy investments into renewable resources while industrialised countries hesitate, noted two new United Nations reports released Wednesday in Nairobi, Kenya.

“Carbon Farming” Makes Waves at Stalled Bonn Talks

U.N. climate talks have largely stalled with the suspension of one of three negotiating tracks at a key mid-year session in Bonn, Germany.

U.S., Malaysia Lead Worldwide “Land Grabs”

Africa is the main target for "land grabs" by foreign investors, according to a new report on large-scale land acquisitions around the world released Monday.

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