In forests worldwide, drought consistently has had a more detrimental impact on the growth and survival of larger trees, new research shows. In addition, while the death of small trees may affect the dominance of trees in a landscape, the death of large trees has a far worse impact on the ecosystem and climate’s health, especially due to the important […]
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Until recently, Pakistan has not used the bulk of its coal reserves – some of the largest in the world – for power generation. Within the past year the government in Islamabad has signed a number of financial and technological agreements with China aimed at exploiting massive coal reserves at the Tharparkar mine in Sindh province, in the south of the […]
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Climate change appears to be affecting the jet stream, altering the weather patterns over the U.S. so that regions can get “stuck” in extreme weather for weeks, a new study has found. The jet stream is the fast-moving, high-altitude air current that shuttles weather from west to east over North America and Europe. But the pronounced warming of the Arctic—where […]
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Scientists have concluded for the last decade that more-acidic seas have been harming coral, making it more difficult for coral reefs to grow or regenerate themselves. Conducting an experiment over the course of 22 days, scientists flooded Australia’s Great Barrier Reef with an antacid. They found that by lowering the water’s acidity, it caused the coral to grow. Research has […]
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People always wonder how the moon was made. The birth of the planets 4.5 billion years ago was extremely violent. They grew to full size by absorbing rival planet embryos in a series of titanic collisions—one of which probably gave Earth its moon (below). The moon’s large size, low density, and other features suggest that it emerged from an explosion […]
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We all know that hurricanes are very powerful and destructive. Some scientists think that we can try to control them by slowing, stopping or weakening them with pumps. The pumps would bring the colder water to the surface from deep into the ocean waters to decrease the heat that hurricanes thrive on. This system would be very costly transporting the […]
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The amount of plastic garbage in the North Pacific Ocean has risen a hundredfold since the 1970s, and the floating debris is now so abundant that marine life is adapting to its presence. Researchers from the Scripps Institution of Oceanography sampled an expanse of the sea between Hawaii and California, where currents tend to deposit flotsam from around the Pacific […]
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10 myths about global warming, and what the science really says. THE REASONS FOR raising doubts about the human causes of global warming, explains Skeptical Sciences John Cook, are often political rather than scientific. Cook hears from climate change skeptics that ‘“its all a liberal plot to spread socialism and destroy capitalism. However, what is causing global warming is a […]
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Earth’s temperature has increased by 1°C over the past century, and most of this warming has been caused by carbon dioxide emissions. But what does that mean locally? A new study published in Nature Climate Change pinpoints the temperature increases caused by CO2 emissions in different regions around the world. Using simulation results from 12 global climate models, Damon Matthews, […]
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Stanford scientists have found that chronically low levels of oxygen throughout the oceans hampered the recovery of life after the Permian-Triassic extinction, the most catastrophic die-off in our planet’s history. Also known as the “Great Dying,” global ecosystems collapsed as some 90 percent of species perished in this extinction event 250 million years ago. The new findings, published this week […]
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