What exactly is causing the increase in global temperatures? Do scientists really have good answers? This post from Carbon Brief provides one of the better explanations you will ever see with respect to adding up the most important determining factors, some of which are positive and others negative. Quite properly the emphasis is placed on changes that have long-term effects, which leaves out El Nino/La Nina cycles, while separating the factors caused by humans from those that are entirely natural. This is a good place to brush up on some very basic fundamentals of climate science, with many links to outside sources available for further reference.
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Hurricanes in the Atlantic are undergoing rapid, dramatic spurts of intensification that were not previously observed. A new study has found data that backs up something that has commonly been noticed, and speculates on how this trend might continue.
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A 600,000 year old ice core has been drilled in Tibet. The venerable Lonnie Thompson supervised the work, with results yet to be studied. Unlike Greenland, where the deepest core was stopped at a depth of 120,000 years, the ice at this high altitude location in the mid-latitudes was able to survive six complete cycles of the late ice-age epoch. There is a scenic type of video that records the project.
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How the Paris agreement is faring with the absence of American leadership (The Economist). France’s president Macron has been a refreshing surprise, with an abundance of zeal, and there is still a strong American presence. China’s ultimate role is still in doubt. This astute article provides a fair appraisal of what the needs are.
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Tim Radford is a seasoned journalist who has been covering climate change for the Guardian since 1988. Here are his views on the subject of how the human race has reached the limits to growth, in more than one way. His views offer a sharp contrast to those of people who are anxious for humans to rush off and conquer the universe. Right now the simple concept of sustainability offers a higher calling to reach for.
Carl