Histograms of daily maximum wet-bulb temperature, TWmax (°C), and maps of the ensemble averaged 30-year TWmax. (A) The histograms are generated for the most populous cities in the selected regions for each scenario: HIST (blue), RCP4.5 (green), and RCP8.5 (red). Values within each panel correspond to the 2- and 25-year return period of the bias-corrected annual maxima of TWmax, and the x and y axes indicate TWmax (°C) and the number of occurrences on a logarithmic scale, respectively. The background image was obtained from NASA Visible Earth. (B to D) The spatial distributions of bias-corrected ensemble averaged 30-year TWmax for each GHG scenario: HIST (1976–2005) (B), RCP4.5 (2071–2100) (C), and RCP8.5 (2071–2100) (D). Graphic: Im, et al., 2017 / Science Advances

Climate change to cause humid heatwaves that will kill even healthy people

By Damian Carrington 2 August 2017 (The Guardian) – Extreme heatwaves that kill even healthy people within hours will strike parts of the Indian subcontinent unless global carbon emissions are cut sharply and soon, according to new research. Even outside of these hotspots, three-quarters of the 1.7 billion population – particularly those farming in the Ganges […]

Study finds there are four ways to reduce economic inequality: state collapse, pandemic, revolution, and “mass mobilization warfare”

By Ana Swanson 19 April 2017 (The Washington Post) – Rising economic inequality in the United States has been a major animating force on both the political left and the right. Whether it is Sen. Bernie Sanders promising to rebuild blue-collar communities or President Trump pledging to “make America great again,” today’s political platforms often […]

Graph of the Day: NOAA annual greenhouse gas index (AGGI), 1700-2015

30 April 2016 (NOAA) – The annual greenhouse gas index (AGGI) is a measure of the warming influence of long-lived trace gases and how that influence is changing each year. The index was designed to enhance the connection between scientists and society by providing a normalized standard that can be easily understood and followed. The […]

Catastrophic decline of Africa elephant population revealed by most comprehensive survey ever

By David McKenzie and Ingrid Formanek 31 August 2016 Linyanti Swamp, Botswana (CNN) – Scanning Botswana’s remote Linyanti swamp from the low flying chopper, elephant ecologist Mike Chase can’t hide the anxiety and dread as he sees what he has seen too many times before. “I don’t think anybody in the world has seen the number […]

The world is about to install 700 million air conditioners – “Demand for cooling, particularly in hot climates, is going to be an incredible driver of electricity requirements”

By Chris Mooney and Brady Dennis 31 May 2016 (Washington Post) – As summer temperatures finally settle in, many in the United States take it for granted that they can dial down the thermostat: Americans use 5 percent of all of their electricity cooling homes and buildings. In many other countries, however — including countries […]

The Unnecessariat and the epidemic of suicides and overdoses in the U.S.

By Anne Amnesia 10 May 2016 (More Crows Than Eagles) – […] See any overlap? I do. AIDS generated a response. Groups like GMHC and ACT-UP screamed against the dying of the light, almost before it was clear how much darkness was descending, but the gay men’s community in the 1970’s and 80’s was an […]

What we’re doing to the Earth has no parallel in 66 million years, scientists say – “In the more recent past, we don’t see anything comparable to what humans are currently doing”

By Chris Mooney 21 March 2016 (Washington Post) – If you dig deep enough into the Earth’s climate change archives, you hear about the Paleocene-Eocene Thermal Maximum, or PETM. And then you get scared. This is a time period, about 56 million years ago, when something mysterious happened — there are many ideas as to […]

Estimated disruptions to Earth’s great elemental cycles

23 March 2016 (Desdemona Despair) – Back in 2011, Desdemona was asked by a local church to give a presentation on the condition of the world’s oceans (State of the Oceans 2011 video; pdf slide deck; PowerPoint). As part of the talk, Des wanted estimates for human disturbances to the great cycles of elements on […]

Carbon footprint of Burning Man: 27,000 tons of CO2 per year

By Katie Herzog 21 August 2015 (Grist) – Get ready, folks! The most magical time of year is almost upon us. That’s right: Burning Man. Lest you mistake me for a tech billionaire with a penchant for fuzzy boots, hula hoops, group showers, and dudes named Dusty Unicorn — au contraire. The reason I love […]

Graph of the Day: World arable land per capita, 1961-2012

3 July 2015 (Desdemona Despair) – Will world agriculture be able to support a human population of 12 billion people in the year 2100? The answer largely turns on how much land is available for growing crops. Unfortunately, the world’s arable land area is declining at an enormous rate. The UN Convention to Combat Desertification […]

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