Global temperature update for the month of April. It was the warmest ever for an April that got no extra input from an El Nino event like the last two did. This update from James Hansen concludes that global warming, with short-term variability excluded, has reached the level +1.1°C relative to pre-industrial temperature, as shown separately. That key marker has been rising steadily at a rate of 0.18C per decade for over four decades, which would put us at +1.5C by 2040 if the rate of increase remains unchanged.
https://mailchi.mp/a524027fe40e/april-2018-global-temperature-update?e=e368e4e899
https://mailchi.mp/a524027fe40e/april-2018-global-temperature-update?e=e368e4e899
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David Roberts, writing for Vox, takes on the slippery subject concerning the impact of today’s population and its rate of growth on the problem of climate change. What stands out is the fact that almost 50% of emissions are due to the lifestyles of the wealthiest 10% of the world’s population, while the poorest 50% account for only 10% of emissions. The logic that follows is not hard to understand.
https://www.vox.com/energy-and-environment/2017/9/26/16356524/the-population-question
https://www.vox.com/energy-and-environment/2017/9/26/16356524/the-population-question
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The demand for air conditioning is having a strong effect on the global demand for electric power. Unfilled needs are greatest in countries like India in hot tropical regions that have large, fast-growing populations and are in the process of industrializing. Capturing that demand with 100% renewable energy and highly efficient equipment will be a major challenge.
https://www.axios.com/cooling-the-earth-without-cooking-it-3a9b3cd1-b6fb-4efa-aa70-cacf0389c530.html
https://www.axios.com/cooling-the-earth-without-cooking-it-3a9b3cd1-b6fb-4efa-aa70-cacf0389c530.html
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Violent sand or dust storms and thunderstorms are becoming more frequent and more intense on very hot days in many arid regions. This is an impact of climate change that has been poorly studied but is now getting serious attention as more extreme events occur resulting in scores of fatalities. India is the focal point of this story from Mongabay.
https://news.mongabay.com/2018/05/climate-change-could-be-intensifying-dust-storms-in-india-experts-say/?
https://news.mongabay.com/2018/05/climate-change-could-be-intensifying-dust-storms-in-india-experts-say/?
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A new technique for growing rice is being widely adopted, with significant benefits. It requires much less water than traditional paddies and results in yield improvement of 25% or more. Release of methane, common to paddies, is sharply reduced. The practice is especially interesting because it has had no industrial backing or any kind of organized promotion until just recently, mostly spreading at the grassroots level by word of mouth.
A new technique for growing rice is being widely adopted, with significant benefits. It requires much less water than traditional paddies and results in yield improvement of 25% or more. Release of methane, common to paddies, is sharply reduced. The practice is especially interesting because it has had no industrial backing or any kind of organized promotion until just recently, mostly spreading at the grassroots level by word of mouth.
An update on the problem with algae blooms. This one takes special note of the large output of carbon emissions that are a direct result of the way the algae decompose.
https://insideclimatenews.org/news/15052018/algae-blooms-climate-change-methane-emissions-data-agriculture-nutrient-runoff-fertilizer-sewage-pollution-lake-erie
https://insideclimatenews.org/news/15052018/algae-blooms-climate-change-methane-emissions-data-agriculture-nutrient-runoff-fertilizer-sewage-pollution-lake-erie
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