23.02.2018

# Media

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New Scientist: Rock dusting on farms could cool the climate, so let’s try it

"Crushed basalt applied to agricultural land could soak up billions of tons of carbon dioxide and boost crops. Let's put it to the test, says Olive Heffernan"

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22.02.2018

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EcoWatch: One Million Trees Pledged to 'Trump Forest' to Offset President's Anti-Climate Agenda

"Trump Forest—a global reforestation project aiming to offset President Trump's anti-climate policies—has reached 1 million trees after thousands of pledges from around the world. Trump Forest was launched just under a year ago after POTUS announced he was pulling the U.S. from the Paris agreement."

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20.02.2018

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Technology Networks: Adding Crushed Rock to Farmland Could Reduce CO2 and Protect Crops from Disease

"Farming crops with crushed rocks could help to improve global food security and capture CO2 from the atmosphere, a new study has found. The pioneering research by scientists at the University of Sheffield together with international colleagues suggests that adding fast-reacting silicate rocks to croplands could capture CO2 and give increased protection from pests and diseases while restoring soil structure and fertility."

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20.02.2018

# New Publications

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Beerling, David J.; et al. (2018): Farming with crops and rocks to address global climate, food and soil security

Beerling, David J.; Leake, Jonathan R.; Long, Stephen P.; Scholes, Julie D.; Ton, Jurriaan; Nelson, Paul N. et al. (2018): Farming with crops and rocks to address global climate, food and soil security. In Nature Plants 327, p. 810. DOI: 10.1038/s41477-018-0108-y.

"Managed croplands worldwide are already equipped for frequent rock dust additions to soils, making rapid adoption at scale feasible, and the potential benefits could generate financial incentives for widespread adoption in the agricultural sector. However, there are still obstacles to be surmounted. Audited field-scale assessments of the efficacy of CO2 capture are urgently required together with detailed environmental monitoring. A cost-effective way to meet the rock requirements for CO2 removal must be found, possibly involving the recycling of silicate waste materials. Finally, issues of public perception, trust and acceptance must also be addressed."

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20.02.2018

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Carbon Brief: Guest post: How ‘enhanced weathering’ could slow climate change and boost crop yields

"Achieving the Paris Agreement goals of keeping global warming to “well below” 2C, or to 1.5C, above pre-industrial levels will require rapid decarbonisation of human society. But national commitments to rein in greenhouse gas emissions are currently insufficient to meet these agreed limits. It is increasingly likely that “negative emissions”, or “carbon dioxide removal”, technologies will be needed to take up the slack."

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20.02.2018

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Chemical Engineer: Paris Agreement targets can’t be reached with negative emission technologies

"The report states that NETs should not be relied upon later in the century to compensate for failure to mitigate emissions now. Not only do the NETs investigated in the report fail to reach the level of carbon removal predicted in some climate scenarios, the time taken between researching new technologies and successfully implementing them will take decades. If NETs are seen as a viable solution to climate change, they could influence policy makers to focus on these rather than to prioritise the more urgent need to curb emissions."

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19.02.2018

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Science: Vast bioenergy plantations could stave off climate change—and radically reshape the planet

"Paul Stoy, an ecologist at MSU, paces in front of whiteboards in a powder blue shirt and jeans as he describes how a landscape already dominated by agriculture could be transformed yet again by a different green revolution: vast plantations of crops, sown to sop up carbon dioxide (CO2) from the sky. "We have this new energy economy that's necessary to avoid dangerous climate change, but how is that going to look on the ground?" he asks."

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15.02.2018

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Triple Pundit: Federal Budget Bill Includes Massive Tax Credits for Carbon Capture

"Direct air capture (DAC) is a method for literally removing carbon from the atmosphere. Mechanical trees suck in ambient air and chemically separate out the carbon dioxide. From there, the captured CO2 is pumped deep underground into sealed chambers. The end result of direct air capture, in other words, is permanently stored CO2. The best part? This technology is far from theoretical. ClimeWorks is one of three startups–along with Global Thermostat and Carbon Engineering–to pull it off: Their negative emissions plant in Iceland “stores the air-captured CO2 safely and permanently in basalt, leading us closer to our efforts to achieve global warming targets.”"

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15.02.2018

# Media

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Gas World: Climeworks establishes new market mechanism to help achieve climate goals

"Swiss firm Climeworks has signed several historic contracts for its new Carbon Dioxide Removal solution, marking the first time a company is commissioned to permanently remove the carbon dioxide (CO2) of its customers from the atmosphere."

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12.02.2018

# New Publications

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Macreadie, Peter I.; et al. (2018): Comment on ‘Geoengineering with seagrasses. Is credit due where credit is given?’

Macreadie, Peter I.; Ewers-Lewis, Carolyn J.; Whitt, Ashley A.; Ollivier, Quinn; Trevathan-Tackett, Stacey M.; Carnell, Paul; Serrano, Oscar (2018): Comment on ‘Geoengineering with seagrasses. Is credit due where credit is given?’. In Environ. Res. Lett. 13 (2), p. 28002. DOI: 10.1088/1748-9326/aaa7ad.

"Here we would like to clarify some of the questions raised by Johannessen and Macdonald (2016), with the aim to promote discussion within the scientific community about the evidence for carbon sequestration by seagrasses with a view to awarding carbon credits."

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