There were a series of headlines in a variety of media outlets this week suggesting an unfounded and unphysical claim: that wind turbines might contribute to global warming. Some examples below: The Associated Press ____________________________________________________________ The Harvard Gazette __________________________________________________________________ MIT Review _______________________________________________________________________ These stories are based on an article entitled “Climate Impacts of Windpower,” by Dr. David Keith and Dr. Lee Miller, in which they ran the WRF model (the one I use) and added the impacts of a very large number of wind turbines over the central U.S. They found that the wind turbines caused a .24C warming over the U.S. due to the mixing of warm air down to the surface. Now why does mixing of the wind in the vertical produce surface warming? Doesn't temperature cool with height? The key issue … [Read more...] about Do Wind Turbines Enhance Global Warming? No!
News by Press Association 06/10/2018, 10:52 am FacebookTwitterWhatsAppEmail Send us a story Sign up to our Daily newsletter A major report is due to set out what needs to be done to keep global temperature rises to no more than 1.5C – and what that will mean for the planet. Here’s what you need to know. – What is significant about 1.5C of warming? While warming of 2C above pre-industrial levels has widely been thought of as the threshold beyond which dangerous climate change will occur, vulnerable countries such as low-lying island states warn rises above 1.5C will threaten their survival. Their concerns meant a pledge to pursue efforts to limit temperature rises to 1.5C was included – after tough negotiations – alongside the commitment to keep them “well below” 2C in the global Paris climate agreement in 2015. – So why this report? When the target was put into the Paris Agreement, relatively little … [Read more...] about Global warming: What’s so significant about 1.5C?
Kohima, October 6 (MExN): The Charity Welfare Society conducted an environment awareness and global warming programme at Khezhakeno Village Council hall on October 6. The resources person, Neikodo Chikha PGT, Government High School Khezhakeno said that the environment, broadly considered, embraces both the natural and man-made resources for the enhancement of human welfare. He also said that the resources and services provided by the environment can be classified into three broad categories. First, the environment provides material inputs such as agricultural products, mineral resources, and the scope for buildings or roads. Second, it provides waste disposal services. Third, the environment provides services such as the supporting (e.g., breathing air) and amenity (e.g., landscape) services. “The supply of each service depends on the ambient environmental quality. Natural forces, without man’s intervention, or human actions can bring about environmental changes,” he … [Read more...] about Charity Welfare Society conducts prog on environment and global warming
KATHMANDU: A special report has been prepared on the possible impacts of rise in global temperature and ways to address them. The 48th plenary session of Inter-Governmental Panel on Climate Change held in Songdo city of South Korea from October 1 to 5 prepared the report, the Ministry of Forest and Environment stated. The report is prepared with inputs from various experts and it includes topics like rise in the sea level due to global warming, receding snow deposit in the North Polar region, the effects of rise in temperature in the highland region of the Earth, the effects on biodiversity and allied risks and impacts and ways to address these issues. According to MoFE Spokesperson Sindhu Prasad Dhungana, the report basically dwells on common understanding regarding the rise in global temperature by 1.5 degree Celsius, prediction regarding climate change, possible impacts and risks of climate change. Likewise, other topics covered by the report include the ways of reducing carbon … [Read more...] about Report on risk of global warming prepared
By AFP INCHEON: The UN's 195-nation climate science body plunged deep into overtime Saturday to finalise a report outlining stark options -- all requiring a global makeover of unprecedented scale -- for avoiding climate chaos. Working through the night, the closed-door huddle in rain-soaked Incheon, South Korea, was to convene a plenary later in the day to hammer through a "Summary for Policymakers." Can humanity cap global warming at 1.5 degrees Celsius (2.7 degrees Fahrenheit)? What will it take and how much will it cost? Would climate impacts be significantly less severe than in a 2C world? The Intergovernmental Panel on Climate Change (IPCC) was tasked with these questions by the framers of the landmark 2015 Paris Agreement, which calls for halting the rise in temperatures to "well below" 2C -- and 1.5C if possible. That aspirational goal -- tacked on to the treaty at the last minute -- caught climate scientists off-guard. "Our understanding of 1.5C was very limited, … [Read more...] about What will it take humanity to cap global warming at 1.5 degrees Celsius?