carbon sequestration – Page 2

Global annual net CO2 emissions and negative carbon emissions required to achieve the Paris climate goal of 1.5°C. This animation uses the functional form from Raupach et al., 2014 for positive emissions, adding residual, hard-to-mitigate emissions of 5 percent of the current level, and negative emissions using the ramp of a cosine function. Σ indicates the cumulative emissions 2019-2100. Graphic: Robbie Andrew

August 31, 2019

It’s getting harder and harder to limit global warming to 2°C – “It is partly this hope in future technologies that delays action”

By Robbie Andrew 23 April 2019 (Robbie Andrew) – The road to 2°C is steep; the road to 1.5°C is a cliff. While it is theoretically possible that we can keep global warming under 1.5°C above pre-industrial temperatures, that task is monumental. In fact, models struggle to generate future scenarios that keep warming below 1.5°C, but can […]

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

July 22, 2019

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; […]

World map showing risk assessment of future changes in potential tree cover. (A) Illustration of expected losses in potential tree cover by 2050, under the “business as usual” climate change scenario (RCP 8.5), from the average of three Earth system models commonly used in ecology (cesm1cam5, cesm1bgc, and mohchadgem2es). (B) Quantitative numbers of potential gain and loss are illustrated by bins of 5° along a latitudinal gradient. Graphic: Bastin, et al., 2019 / Science

July 16, 2019

Expert reaction to study looking at trees, carbon storage, and climate change – “It is time to stop suggesting there is a ‘nature-based solution’ to ongoing fossil fuel use. There isn’t. Sorry.”

4 July 2019 (Science Media Centre) – A new study, published in Science, reports on the capacity for trees to reduce atmospheric carbon levels. Dr James Borrell, Researcher at the Royal Botanic Gardens, Kew, said: “Global forest restoration clearly has remarkable potential to address climate change, but restoring forest on this scale is a significant […]

June 9, 2019

As oceans warm, microbes could pump more carbon dioxide back into the air

By Kevin Krajick 29 April 2019 (Columbia University) – The world’s oceans soak up about a quarter of the carbon dioxide that humans pump into the air each year — a powerful brake on the greenhouse effect. In addition to purely physical and chemical processes, a large part of this is taken up by photosynthetic plankton as they incorporate carbon into their […]

May 27, 2019

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 […]

Desdemona Despair

Category: carbon sequestration

It’s getting harder and harder to limit global warming to 2°C – “It is partly this hope in future technologies that delays action”

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”

Expert reaction to study looking at trees, carbon storage, and climate change – “It is time to stop suggesting there is a ‘nature-based solution’ to ongoing fossil fuel use. There isn’t. Sorry.”

As oceans warm, microbes could pump more carbon dioxide back into the air

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”