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.
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The withdrawal from the Kyoto Protocol of one of the world's leaders in fighting climate change could weaken a new agreement far beyond the 2012 scope of the treaty.
Ice-loving penguins have never been more popular, but few people realise they are threatened with extinction from climate change and industrial fishing.
In an ironic twist, officially listing a species as endangered drives up its value to collectors and consumers, putting it on an even faster track to extinction, researchers in Paris reported Tuesday.
A prolonged drought in East Africa in the 1890s not only killed tens of thousands of the native Maasai people, it also reshaped the ecological and political landscape - this according to new research published in the current issue of the 'African Journal of Ecology'.
Iceland and a few other fishing nations have successfully undermined a three-year international effort to place a moratorium on destructive deep-sea trawling.
Deforestation remains the greatest current threat to the world's forests, claiming 10 to 15 million hectares of tree-covered areas every year, but climate change may represent a bigger challenge in the long term, scientists say.
Skin cancer, eye lesions and other infections are on the rise, a reminder that the Antarctic ozone hole continues to be a serious problem, especially for southern Argentina and Chile, where ultraviolet radiation during the spring months increases 25 percent.
Three hundred and eighty parts per million. That's the current concentration of carbon dioxide going into your lungs with each breath. Our parents or grandparents' first breaths at birth contained about 290 parts per million (ppm), as it was for everyone born before them.
Climate change will devastate Africa without substantial help from the world community, according to a new report released at the opening of a major U.N. climate change conference in Nairobi, Kenya Monday.
The increase in skin cancer from sun exposure is alarming, scientists say. Residents of southern Chile and Argentina are advised to take extra care in protecting themselves from solar rays this spring season in the southern hemisphere.
"I am not afraid of being killed," says Egyptian journalist Abeer Al-Askary, who has been repeatedly threatened and beaten by Egyptian government security forces.
"I am not afraid of being killed," says Egyptian journalist Abeer Al-Askary, who has been repeatedly threatened and beaten by Egyptian government security forces.
Every single commercial fishery in the world will be wiped before 2050 and the oceans may never recover if over-fishing continues at its current rate, a four-year scientific investigation has found.
Should child soldiers be held accountable for war crimes? If they aren't, legal experts argue in a new policy brief, they may be more likely to be chosen by warlords to perform the worst atrocities.
Tropical forests' ability to store carbon dioxide and mitigate climate change makes them more valuable than alternative uses like pasture or lumber, and rich countries ought to pay tropical countries to preserve their forests, the World Bank says.
Soaring worldwide demand for energy is driving climate-altering greenhouse gas emissions dangerously higher, and even as investments grow in new "clean" energy sources, existing technologies to reduce energy use are being neglected.
In a world of paradox and plenty, 852 million people are starving while one billion people are overweight, with 300 million of them considered medically obese.