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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For some, it is a realistic assessment -- for others, it is too conservative. Experts consulted by Tierramérica react to the fourth report by the global panel of climate change experts, which predicts an average global temperature increase of 1.8 to 4 degrees Celsius.
A quarter of a million people from over 150 countries don't think a multinational drug company should seek to overturn a provision of India's patent law that permits the manufacture of low-cost life-saving drugs for the world's poor.
Warmer, wetter and stormier - the largest ever scientific review of climate change will say there is virtually no doubt that emissions from burning fossil fuels are causing the documented rise in global temperatures.
The recent collapse of a Canadian Arctic ice shelf illustrates why Canada is the biggest contributor to the International Polar Year, reportedly the largest global scientific research programme, focused on climate change.
Enforced quarantines may be needed in South Africa and elsewhere to bring a deadly, contagious and drug-resistant strain of tuberculosis under control, health experts say.
Anyone with a laptop and a mailbox could create their own bacteria or virus, for good or ill, thanks to a rapidly evolving new technology called synthetic biology, activists warn.
Most of the world's poor depend on livestock to survive, but international poverty reduction efforts devote little attention to the health of these animals, experts say.
Record retail store sales during the holiday season in North America is one reason 2007 is predicted to be the hottest year on record. And it's well past time that people began to connect the dots between what they buy and the resulting environmental impacts such as global warming, experts say.
Cellular telephones that contain toxic chemicals are still being sold in Latin America and other developing regions. But thanks to strict European regulations, there are progressively fewer phones being made with cadmium, lead and other dangerous materials.
The International Polar Year begins in March, and will involve 50,000 scientists studying the impact of climate change at the poles. Canada is the main contributor, donating 160 million dollars.
Widespread use of genetically engineered (GE) crops remains limited worldwide, even as growing weed and pest issues are forcing farmers to use ever greater amounts of pesticides.
Mobile telephones in Latin America and across the developing world will contain less toxic materials, thanks to strict European standards, analysts say.
Japan's controversial whaling fleet has arrived in the Southern Ocean, around Antarctica, and anti-whaling activists are promising to ram and sink any vessels attempting to kill whales.
Japanese hunters in the Southern Ocean, around Antarctica, will kill nearly a thousand whales, some in danger of extinction. Activists will try to stop the whaling ships, by sea and by air.
This was the year that most people in the U.S. and Canada began to take climate change seriously and express hope that their governments would take action to reduce emissions - but it is unclear if they will take action themselves.
Organic agriculture is a potent tool to reduce emissions of greenhouse gases, but also to alleviate poverty and improve food security in developing countries, many experts now believe.
Incredible new forms of life have been discovered around super-hot 400 degree C seafloor vents, as well as under 700 metres of Antarctic ice, by the 20th scientific expedition of the Census of Marine Life of 2006 now underway.
Much to the surprise of most Canadians and the world community, Canada is reneging on its international commitments under the 1997 Kyoto Protocol, which could weaken an international agreement to fight climate change after Kyoto expires in 2012.
While world attention has focused on the HIV/AIDS pandemic, public health experts say that U.S. political interference and declining financial support for family planning, abortion and prevention of other sexually transmitted infections has contributed to shockingly high death and disability rates in developing countries.