Estimated conifer vegetation climate mismatch (VCM) in the Sierra Nevada (2015-2020). (a) The conifer HSM projected to contemporary climate and overlayed on the modern conifer distribution (EVeg) reveals that up to 19.5% of modern conifer forest is in VCM, primarily along the low-elevation western slope of the Sierras. The total area of conifers shown is 40,495 km2, of which ∼32,500 km2 are in equilibrium with the modern climate. (b) Mean Temperature of Wettest Quarter and Mean Annual Precipitation were the most important predictors in the HSM (meanMTWQ = 0.518, SEMTWQ = 0.209 and meanMAP = 0.418, SEMAP = 0.139). Standard error bars are included in the barplot. (c) Boxplots show the difference between modern (2015–2020) and historical (1915–1955) climate within the conifer VCM regions. Change in climate is calculated as the number of standard deviations the modern climate differs from the historical period. Though the differences were statistically significant for each climate variable (p < 8.45 × 10−12, independent t-test), Precipitation of Driest Month showed the greatest decrease (mean = −2.41, SD = 2.84) and MTWQ the greatest increase (mean = 1.59, SD = 0.329) between the historical and modern climate. Mean Annual Precipitation changed the least within the VCM area (mean = 0.165, SD = 0.395). Boxplots include the median line, a box denoting the interquartile range, and whiskers showing values ±1.5 × the interquartile range. Graphic: Hill, et al., 2023 / PNAS Nexus

Researchers are discovering “zombie forests” in new places across the western U.S. – “Our maps force some critical – and difficult – conversations about how to manage impending ecological transitions”

By Brendan O’Leary 13 May 2023 (The Cool Down) – It’s no secret that our warming atmosphere has resulted in extreme weather all over the world, but there’s also a less noticeable consequence at work as well. Rising ambient temperatures mean that thousands of coniferous forests in California will be unable to replenish their numbers once they die. What […]

Two of three male spotted owls released into the wild in the Fraser Canyon. Two died and the other was injured and returned to captivity. Photo: BC government

“All I see are ghosts”: fear and fury as the last spotted owl in Canada fights for survival

By Leyland Cecco 26 May 2023 Spô’zêm First Nation, Canada (The Guardian) – On a rainy spring morning, huddled under the shelter of an ancient cedar, Jared Hobbs hoots, whoops and squawks. In years past, he could lure curious owls by drawing on his extensive repertoire. Among them are the whoo whoo whoo whooo territorial calls, alarm […]

Trucks transport bauxite on a red-dirt mining road in the Boké region of Guinea. Photo: Chloe Sharrock / MYOP / The Washington Post

On frontier of new “gold rush” quest for coveted EV metals yields misery – “I am frustrated. But even more than that, I have lost hope.”

By Rachel Chason and Chloe Sharrock 27 April 2023 KAGBANI, Guinea (The Washington Post) – One of the poorest countries on Earth has become a crucial player in the world’s green-energy transition. Guinea, a West African nation of more than 13 million people, is home to the world’s biggest reserves of bauxite — a reddish-brown […]

Deforestation in the Brazilian Amazon, February 2008 - February 2023. After a drop in January 2023, deforestation in the Amazon returned to growth in February. According to Imazon data, 325 km² of forest were cleared in February 2023, equivalent to the size of Belo Horizonte. This was the biggest devastation recorded for February in 16 years, since the research institute deployed its SAD satellite imagery monitoring system. Graphic: Imazon

Deforestation in Brazil’s Amazon rose by 14 percent in March 2023 – “The new government needs to act urgently to rebuild its capacity for repression to environmental crime, which had been totally destroyed by the Bolsonaro government”

By Steven Grattan 7 April 2023 São Paulo (Reuters) – Deforestation in Brazil’s Amazon rainforest rose 14 percent in March from the previous year, preliminary official data showed on Friday, highlighting the continued challenges for the new leftist government. President Luiz Inacio Lula da Silva took office on 1 January 2023, pledging to end deforestation […]

A sign that reads in Portuguese “Justice for Dom and Bruno” and with images of the British journalist Dom Phillips, on the left, and the indigenous specialist Bruno Pereira is displayed on the Arcos da Lapa aqueduct during a protest by environmental groups in Rio de Janeiro, Brazil, 26 June 2022. Brazilian police said Monday, 23 January 2023, they planned to indict Ruben Dario da Silva Villar, a Colombian fish trader, as the mastermind of the murders. Photo: Bruna Prado / AP Photo

Brazil police: Businessman ordered killings of men in Amazon

By Fabiano Maisonnave 23 January 2023 SAO PAULO (AP) – Brazilian police said Monday they planned to indict a Colombian fish trader as the mastermind of last year’s slayings of Indigenous expert Bruno Pereira and British journalist Dom Phillips. Ruben Dario da Silva Villar provided the ammunition to kill the pair, made phone calls to […]

Carbon credits claimed by Verra rainforest carbon credits vs. real emissions reductions. At least 90 percent of claimed credits do not represent real emissions reductions. Graphic: The Guardian

More than 90 percent of rainforest carbon offsets by biggest certifier are worthless, analysis shows – “It’s disappointing and scary”

By Patrick Greenfield 18 January 2023 (The Guardian) – The forest carbon offsets approved by the world’s leading certifier and used by Disney, Shell, Gucci and other big corporations are largely worthless and could make global heating worse, according to a new investigation. The research into Verra, the world’s leading carbon standard for the rapidly growing $2bn (£1.6bn) […]

Regional glacier mass change and contributions to sea level rise from 2015 to 2100. Discs show global and regional projections of glacier mass remaining by 2100 relative to 2015 for global mean temperature change scenarios. Discs are scaled based on each region’s contribution to global mean sea level rise from 2015 to 2100 for the +2°C scenario by 2100 relative to preindustrial levels, and nested rings are colored by temperature change scenarios showing normalized mass remaining in 2100. Regional sea level rise contributions >1 mm SLE for the +2°C scenario are printed in the center of each disc. The horizontal bars below each disc show time series of area-averaged annual mass balance from 2015 to 2100 for +1.5°C (top bar) and +3°C (bottom bar) scenarios. The colorbar is saturated at −2.5 m w.e., but minimum annual values reach −4.2 m w.e. in Scandinavia. Graphic: Rounce, et al., 2022 / Science

Half of glaciers will be gone by 2100 even under Paris 1.5C accord, study finds

By Phoebe Weston 5 January 2023 (The Guardian) – Half the planet’s glaciers will have melted by 2100 even if humanity sticks to goals set out in the Paris climate agreement, according to research that finds the scale and impacts of glacial loss are greater than previously thought. At least half of that loss will happen […]

The leadership of the U.N.-backed COP15 biodiversity conference applaud after passing the Kunming-Montreal Global Biodiversity Framework in Montreal, Quebec, Canada, 19 December 2022. Photo: Julian Haber / UN Biodiversity / REUTERS

COP15 reaches deal to halt decline in nature by 2030 – Countries to allocate $200 billion per year for biodiversity initiatives but funds to biodiversity are miniscule – “We know the global economy and every company in it is negatively impacting biodiversity”

By Isla Binnie and Gloria Dickie 19 December 2022 MONTREAL (Reuters) – A United Nations summit approved on Monday a landmark global deal to protect nature and direct billions of dollars toward conservation but objections from key African nations, home to large tracts of tropical rainforest, held up its final passage. The Kunming-Montreal Global Biodiversity […]

An aerial view shows deforestation near a forest on the border between Amazonia and Cerrado in Nova Xavantina, Mato Grosso state, Brazil 28 July 2021. Picture taken 28 July 2021 with a drone. Photo: Amanda Perobelli / REUTERS

Deforestation of Brazilian savanna surged 25 percent in one year – “More than 10,000 square km is a scary number”

By Jake Spring 13 December 2022 SAO PAULO, Dec 13 (Reuters) – Deforestation in the world’s most biologically diverse savanna, the Brazilian Cerrado, rose by around 25 percent in the 12 months through July from the previous period, two people familiar with the still unreleased government data told Reuters. Brazil has yet to publish its […]

Members of the Wampis Nation Peru listen as Indigenous representatives of Latin American countries hold a press conference during the United the Nations Biodiversity Conference (COP15) in Canada in December 2022. Photo: Andrej Ivanov / Getty Images

Business is using COP15 to show it’s serious about saving nature, but environmentalists aren’t so sure – “If you come here and your objectives actually are against the objectives of the convention, then we have a problem”

By Marisa Coulton 17 December 2022 (Financial Post) – The UN biodiversity conference in Montreal might go down in history as the moment that business engaged in the fight to preserve nature, but the presence of a thousand corporate representatives is making some the environmentalists who have been attending these meetings for years uneasy. Some […]

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