Aerial view of Siberia wildfires in Buryatiya, 14 August 2019. Photo: The Siberian Times

5.4 million hectares ablaze in Siberia – “Almost four million hectares that are burning now are impossible to extinguish with any group of forces”

14 August 2019 (The Siberian Times) – Territory covered with wildfires across Russia has reached its peak for the year so far, with some 5.4 million hectares ablaze mostly in Siberia and the country’s far east. The total land destroyed by flames will soon exceed 2018 with weeks of the burning season still to go. […]

Comparison of normalized difference vegetation index (NDVI) trends over the globally vegetated areas between two periods of 1982–1998 and 1999–2015. (A) NDVI trend of 1982–1998. (B) NDVI trend of 1999–2015. (C) Differences of NDVI trend between 1999–2015 and 1982–1998. The insets (I) show the relative frequency (percent) distribution of significant decreases (Dec*; P < 0.05), decreases (Dec), increases (Inc), and significant increases (Inc*), and the insets (II) show the frequency distributions of the corresponding ranges. Graphic: Yuan, et al., 2019 / Science Advances

Atmospheric vapor deficit causing worldwide loss of vegetation

By Bob Yirka 15 August 2019 (Phys.org) – A large international team of researchers has found evidence of a connection between an increase in the atmospheric vapor deficit and worldwide vegetation loss. In their paper published in the journal Science Advances, the group describes their analysis of climate datasets and the correlation of an increase in […]

Excitation near the saddle-node bifurcation and steady-state solutions for global carbon cycle model. Graphic: Rothman, 2019 / PNAS

Breaching carbon threshold could lead to mass extinction – Carbon dioxide emissions may trigger “reflex” in global carbon cycle, with devastating consequences

By Jennifer Chu 8 July 2019 (MIT News) – In the brain, when neurons fire off electrical signals to their neighbors, this happens through an “all-or-none” response. The signal only happens once conditions in the cell breach a certain threshold. Now an MIT researcher has observed a similar phenomenon in a completely different system: Earth’s […]

People watch sockeye salmon it the fish allder at the Hiram M. Chittenden Locks in Seattle, on 23 June 2017 Photo: Hiram M. Chittenden Locks

Lowest sockeye salmon count on record at the Ballard Locks – “The salmon population is just not healthy anymore”

By Meghan Walker 15 August 2019 (My Ballard) – The number of sockeye salmon passing through the Ballard Locks Fish Ladder is at all-time low, according to yearly counts dating back to the 1970s. According to the Washington Department of Fish and Wildlife’s daily count, just 18,000 sockeye have been counted at the fish ladder during […]

Linkages between Amundsen Sea winds and global SST and SLP. Time series of zonal wind and zonal total stress over the PITT box, the SOI and the IPO. The legend shows the unit for each time series, and scaling for the axis values where appropriate. Graphic: Holland, et al., 2019 / Nature Geoscience

First evidence of human-caused climate change melting the West Antarctic Ice Sheet

12 August 2019 (British Antarctic Survey) – A new study published this week reveals the first evidence of a direct link between human-induced global warming and melting of the West Antarctic Ice Sheet. UK-US researchers say that curbing greenhouse gas emissions now could reduce the future sea-level contribution from this region. Ice loss in West […]

July 2019 blended land and sea surface temperature anomalies in degrees Celsius and in percentiles. Graphic: NOAA / NCEI

July 2019 was Earth’s hottest month in recorded history – 2019 almost certain to be among the five warmest years on record

By Dr. Jeff Masters 15 August 2019 (Weather Underground) – July 2019 was the planet’s warmest July and warmest month in absolute terms since record keeping began in 1880, said NOAA’s National Centers for Environmental Information (NCEI)  on Thursday. Earth’s previous warmest month on record was July 2016. The Japan Meteorological Agency (JMA) rated July 2019 in a […]

Gas storage tanks receiving natural gas from feeder pipelines before compression for transport in high-pressure pipelines at the Haynseville shale formation, Texas. This photo was taken with a forward-looking infrared (FLIR) camera tuned to the infrared spectrum of methane, allowing visualization of methane, which is invisible in the normal camera view and to the naked eye. Photo: Sharon Wilson / Howarth, 2019 / Biogeosciences

Fracking prompts global spike in atmospheric methane – “This recent increase in methane in massive”

By Blaine Friedlander 14 August 2019 (Cornell Chronicle) – As methane concentrations increase in the Earth’s atmosphere, chemical fingerprints point to a probable source: shale oil and gas, according to new Cornell research published 14 August 2019 in Biogeosciences, a journal of the European Geosciences Union. The research suggests that this methane has less carbon-13 relative […]

Satellite view of Chennai Lake as it dries up, from 5 Feb 2019 to 15 July 2019. Photo: Copernicus / FT

No end to crisis in sight as drought grips India’s Chennai – “The civil strife in this country will start from water, not from religion”

By Stephanie Findlay 3 August 2019 CHENNAI (Financial Times) – Murugan Sundaramurthy’s water business is buoyant. His fleet of tanker trucks have been fanning out across the countryside around Chennai for two decades, sucking water from boreholes and delivering it to homes to quench the city’s thirst. But demand today is as high as he […]

Map of world water stress projected to 2020, 2030, and 2040. Data: World Resources Institute; United Nations. Graphic: The New York Times

A quarter of humanity faces looming water crises – “The picture is alarming in many places around the world”

By Somini Sengupta and Weiyi Cai 6 August 2019 BENGALURU, India (The New York Times) – Countries that are home to one-fourth of Earth’s population face an increasingly urgent risk: The prospect of running out of water. From India to Iran to Botswana, 17 countries around the world are currently under extremely high water stress, […]

Media article co-visibility network-individual level. Clustered representation of the co-visibility network: nodes are climate change contrarians (CCCs) and climate change scientists (CCSs) who have at least one media article associated with at least one other individual. Links are colored according to three types: links between members of the CCC (CCS) group are red (blue) and links between groups are black; the percentages of links by type are reported in parentheses (e.g., 52 percent of links are within the CCC group). We used a modularity-maximizing clustering algorithm48 to identify three communities, with nodes ordered along each spine according to its network centrality—as such, the most prominent individuals are located at the apex. Two communities are well mixed, whereas the third represents an extremely polarized echo chamber comprised primarily of CCC. (inset) Magnification of the apex showing the most prominent individuals. Graphic: Peterson, et al., 2019 / Nature Communications

Media coverage creates false balance on climate science, study shows – “Climate change contrarians” receive 49 percent more media coverage than scientists

By Lorena Anderson 13 August 2019 (UC Merced) – The American media lends too much weight to people who dismiss climate change, giving them legitimacy they haven’t earned, posing serious danger to efforts aimed at raising public awareness and motivating rapid action, a new study shows. While it is not uncommon for media outlets to […]

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