While scientists continue to debate whether elevated concentrations of CO 2 and other greenhouse gasses, such as methane, will lead to significant changes in Earth's temperature, they agree on one thing. Boosting atmospheric CO 2 makes plants grow faster. Paradoxically, that effect could spell disaster for plant eaters, from caterpillars to antelope, as well as the animals that dine on these herbivores, new research suggests. Fast growth often leads to poor nutritional value. Warming Drives Birds North British birds are spreading their wings and extending their range northwards to beat global warming, scientists said.
Scientists believe the extension of range is due to climatic warming.
The Fraser River fishery could be almost barren of salmon within a few decades if water temperatures continue to rise because of global warming. Canada's largest salmon fishery could be the first tangible casualty of climate change. Even a small change in the river's temperature could destroy spawning grounds. Climate Change threatens Polar Bears Climate change is threatening polar bears with starvation by shortening their hunting season. One result is the increasing numbers of hungry bears wandering into northern Canadian communities.