Water towers of the World: the most important mountainous and glacial regions in the Americas, which serve as the “water towers” for billions living downstream. Data: Walter Immerzeel, Utrecht University. Graphic: Brian T. Jacobs / National Geographic

World’s supply of fresh water in trouble as mountain ice vanishes – 1.9 billion people at risk from mountain water shortages – “The most important water towers are also among the most vulnerable”

By Alejandra Borunda 9 December 2019 (National Geographic) – High in the Himalaya, near the base of the Gangotri glacier, water burbles along a narrow river. Pebbles, carried in the small river’s flow, pling as they carom downstream. This water will flow thousands of miles, eventually feeding people, farms, and the natural world on the vast, […]

The water at Balmoral beach in New South Wales has turned black after Australia's recent deadly bushfires, 9 December 2019. Local woman Imogen Brennan shared videos of the beach on social media. Video: Imogen Brennan / BBC

Video: Bushfire ash washes up on Australian beach

24 December 2019 (news.com.au) — Ash and burned debris from trees washed up on beaches on the New South Wales south coast as weeks-old bushfires burned on Thursday, 24 December 2019. Two major uncontained bushfires had threatened coastal communities and forced evacuations in the area. The Currowan Fire had burned over 200,00 hectares since breaking […]

Study skins of the extinct Lana’i and Kaua’i ‘akiaola. Photo: Paul Sweet / AMNH

All of the species declared extinct in the 2010-2019 decade – “The trends that connect these 160 extinctions are true of the biodiversity crisis more generally”

By Ryan F. Mandelbaum 16 December 19 (Gizmodo) – Lonesome George, the last of the Pinta Island tortoises, died in 2012. George’s story is the perfect extinction story. It features a charismatic character with a recognizable face, an obvious villain, and the tireless efforts of naturalists. The population of the Pinta Island tortoise species was […]

Satellite view of construction at the Shentou coal-fired power station in Shanxi, China. In July 2017, China’s National Energy Administration ordered the plant’s owners to stop construction of two 1,000 megawatt units at the plant; in September 2017 the order was changed to “postpone.” Construction on the two units officially resumed on 28 March 2019. Photo: Google

In tougher times, China falls back on coal – “There’s a deep contradiction in this”

By Stephanie Yang 23 December 2019 BEIJING (The Wall Street Journal) – China’s efforts to wean itself off coal are losing steam, as the world’s biggest carbon emitter is putting economic growth and energy security above its ambitions to be a leader in combating climate change. Coal consumption is back near peak levels after rebounding […]

Tree buds in the Apothecary Garden, also known as the Botanic Garden of Moscow State University, in Moscow, Russia, 18 December 2019. Photo: Shamil Zhumatov / REUTERS

Moscow wonders where winter has gone as temperatures hit 133-year high – “This is not our winter. It came from somewhere else.”

By Dmitry Antonov, Gennadiy Novik, and Dmitry Madorsky 18 December 2019 MOSCOW (Reuters) – Residents of Moscow are wondering where winter has gone as the highest December temperatures for 133 years deprive the Russian capital of its customary covering of snow. “This is not our winter,” said pensioner Ludmila Biryukova. “It came from somewhere else.” […]

The geographic breakdown of each percentile of the global distribution of income evolved, 1990-2016. In 1990, 33 percent of the population of the world’s top 0.001 percent income group were residents of the United States and Canada. In 2016, 5 percent of the population of the world’s top 0.001 percent income group were residents of the Russian Federation. Data: Alvaredo, et al., 2018, based on data from the World Inequality Database http://WID.world. Graphic: UNDP

2019 Human Development Report says unchecked inequality growth may trigger a “new great divergence” in society not seen since the Industrial Revolution – “This is the new face of inequality”

BOGOTÁ, 9 December 2019 – The demonstrations sweeping across the world today signal that, despite unprecedented progress against poverty, hunger, and disease, many societies are not working as they should. The connecting thread, argues a new report from the United Nations Development Programme (UNDP), is inequality. “Different triggers are bringing people onto the streets — […]

Trend in October rainfall at Victoria Falls 1064 m elevation, 1976-2016. Graphic: Kaitano Dube

Drought, heat, and Victoria Falls: The spectre of hot drought

By Bob Henson 11 December 2019 (Weather Underground) – The massive curtain of water in southern Africa between Zambia and Zimbabwe known as Victoria Falls is the world’s biggest waterfall sequence when you take into account both width and height. Often ranked as one of the seven wonders of the natural world, the falls are a prime […]

Hansen, et al. (1988) projections compared with observations on a temperature vs. time basis (top) and temperature vs. external forcing (bottom). Graphic: Hausfather, et al., 2019 / Geophysical Research Letters

Early climate modelers got global warming right, new report finds – “The warming we have experienced is pretty much exactly what climate models predicted it would be as much as 30 years ago”

By Robert Sanders 4 December 2019 (Berkeley News) – Climate skeptics have long raised doubts about the accuracy of computer models that predict global warming, but it turns out that most of the early climate models were spot-on, according to a look-back by climate scientists at the University of California, Berkeley, Massachusetts Institute of Technology […]

Extinction Rebellion activists wear nooses around their necks in protest outside of the COP25 climate talks congress in Madrid, Spain, Saturday, 14 December 2019. The marathon international climate talks ended with no agreement on carbon markets. Photo: Manu Fernandez / AP Photo

Longest UN climate talks end with no deal on carbon markets – “Regressive governments put profit over the planetary crisis and the future of generations to come”

By Frank Jordans and Aritz Parra 15 December 2019 MADRID (AP) – Marathon international climate talks ended Sunday with major polluters resisting calls to ramp up efforts to keep global warming at bay and negotiators postponing the regulation of global carbon markets until next year. Those failures came even after organizers added two more days […]

Alaska’s Columbia glacier began rapidly retreating around 1980, and its leading edge has moved more than 20 kilometers inland. These images, captured by the joint NASA / U.S. Geological Survey Landsat satellites, were stitched together into a video to show the glacier’s dynamic evolution from 1972 to 2019. Video: Mark Fahnestock / University of Alaska Fairbanks

Video: 47 years of satellite images show retreat of Alaskan’s Columbia glacier

By Carolyn Gramling 10 December 2019 SAN FRANCISCO (Science News) – A mesmerizing new series of images shows the retreat of Alaska’s Columbia glacier over the last 47 years in gorgeous, excruciating detail. The images were presented December 10 at the American Geophysical Union’s annual meeting. Landsat satellites operated by NASA and the U.S. Geological […]

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