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 […]

An array of Direct Air Capture (DAC) fans for capturing carbon dioxide from the atmosphere. Photo: Carbon Engineering, Ltd

Can direct air capture technology save us from global warming? “By the end of the century, DAC could require the equivalent of over half of today’s global energy needs”

By Simon Levey 22 July 2019 (Grantham Institute) – “We’ve fallen in and out of love with outlandish technologies in the hope that they might save us from climate change,” says Dr Ajay Gambhir, Senior Research Fellow at the Grantham Institute – Climate Change and the Environment at Imperial College London. “Some are just unicorns; […]

Scientists warn NSW tree-planting scheme does more harm than good – “The main goal of the project is to actually plant as many trees as you can fit into the ground”

By Jonathan Hair 26 May 2019 (ABC News) – There are fears national parks in NSW are being damaged by a revenue-making tree-planting scheme, after revegetation works were carried about in the Capertee National Park. About three hours’ drive west of Sydney, Capertee National Park was a working cattle property until 2010, when it was […]

Rapid permafrost thaw unrecognized threat to landscape, global warming researcher warns – “We are watching this sleeping giant wake up right in front of our eyes”

Rapid permafrost thaw unrecognized threat to landscape, global warming researcher warns – “We are watching this sleeping giant wake up right in front of our eyes”

30 April 2019 (University of Guelph) – A “sleeping giant” hidden in permafrost soils in Canada and other northern regions worldwide will have important consequences for global warming, says a new report led by University of Guelph scientist Merritt Turetsky. Scientists have long studied how gradual permafrost thaw occurring over decades in centimetres of surface […]

America conquest cooled Earth’s climate – The Great Dying of the indigenous peoples of the Americas contributed to the Little Ice Age

By Jonathan Amos 31 January 2019 (BBC News) – Colonisation of the Americas at the end of the 15th Century killed so many people, it disturbed Earth’s climate. That’s the conclusion of scientists from University College London, UK. The team says the disruption that followed European settlement led to a huge swathe of abandoned agricultural […]

Beetle damage skyrockets to nearly a million acres in Southcentral Alaska – “This may just be the beginning”

By Zaz Hollander 1 October 2018 PALMER (Anchorage Daily News) – A beetle infestation already decimating Susitna Valley spruce trees worsened sharply this summer. Spruce beetles killed trees across nearly 558,000 acres of forest this year and mostly in Mat-Su, according to an update released Monday by the U.S. Forest Service and Alaska Department of […]

UN chief: With rapid, far-reaching changes, world can prevent global warming worst-case scenarios – “Limiting temperature rise to 1.5 degrees will require rapid, far-reaching, and unprecedented changes in all aspects of society”

13 October 2018 (UN News) – “Limiting temperature rise to 1.5 degrees will require rapid, far-reaching, and unprecedented changes in all aspects of society – especially how we manage land, energy, industry, buildings, transport, and cities,” Secretary-General António Guterres, at a ministerial meeting on climate finance, in Bali, Indonesia.“That means ending deforestation and planting billions […]

Global warming is killing the cedar trees of Lebanon – “Climate change is a fact here. There is less rain, higher temperatures, and more extreme temperatures.”

By Anne Barnard; photography by Josh Haner 18 July 2018 Barouk Cedar Forest, Lebanon (The New York Times) – Walking among the cedars on a mountain slope in Lebanon feels like visiting the territory of primeval beings. Some of the oldest trees have been here for more than 1,000 years, spreading their uniquely horizontal branches […]

Forests “essential” for the future, UN agriculture chief spells out in new report

6 July 2018 (UN News) – Time is running out for the world’s forests, warns a new report by the United Nations agriculture agency, urging governments to foster an all-inclusive approach to benefit both trees and those who rely on them.Halting deforestation, managing forests sustainably, restoring degraded forests and adding to worldwide tree cover all […]

Global warming broadens threat of emerald ash borer – “This should be a wake-up call for how we think about invasive species”

17 May 2018 (University of Waterloo) – More Canadian cities will experience damage from the emerald ash borer than previously thought. As a result of climate change and fewer days of extreme cold, the beetle may eat its way further north than originally estimated. Kim Cuddington, a professor of biology at the University of Waterloo, […]

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