“But now, human-forced climate change is warming Earth too quickly for it to be controlled by natural silicate weathering, which can take hundreds of thousands of years to work. To have a larger impact, Graham said we’d have to use enhanced weathering to speed up the process.”
“Critics[nbsp]say the project will do little to dent Australia’s greenhouse emissions. But if deployed at scale, gas captured from wastewater can help decarbonise our gas grid and bolster energy supplies. The trial represents the chance to demonstrate an internationally proven technology on Australian soil.”
“While wood pellets are already part of the climate solution, the future holds even more promise. Emerging technology such as carbon capture and storage (CCS) promises to use wood pellets to achieve negative GHG emissions which are mixed with a solvent and then, instead of being released to the atmosphere, are sent through a pipeline to deep underground air pockets where they are permanently stored.”
“Without[nbsp]setting[nbsp]basic principles, there is a[nbsp]risk[nbsp]that[nbsp]projects[nbsp]which[nbsp]claim to be carbon dioxide removal,[nbsp]will[nbsp]actually increase[nbsp]the amount of[nbsp]CO2 in the atmosphere. Hence, defining what Credible and Real CDR is will serve setting boundaries the overall if not creating a gold standard for removing co2 from the atmosphere, this especially in order to avoid loopholes in the accounting.”
Sarnoff, Joshua D. (2020): Negative-Emission Technologies and Patent Rights after COVID-19. In Clim. Law 10 (3-4), pp. 225–265. DOI: 10.1163/18786561-10030001.
“Focusing on both US law and international developments, this article proposes various ex-ante measures that can be adopted by national governments and private funders to minimize the likely forthcoming worldwide conflicts that will arise over balancing innovation incentives for, and affordable access to, patented[nbsp]nets.”
Greenstone, Michael; Nath, Ishan (2020): Do Renewable Portfolio Standards Deliver Cost-Effective Carbon Abatement? BFI Working Paper. Becker Friedman Institute.
“Using the most comprehensive data set ever compiled and a difference-in-differences style research design, we find that electricity prices are 11% higher seven years after RPS passage, largely due to indirect grid integration costs (e.g., transmission and intermittency). On the benefit side, carbon emissions are 10-25% lower.”
Lefebvre, David; Williams, Adrian; Meersmans, Jeroen; Kirk, Guy J. D.; Sohi, Saran; Goglio, Pietro; Smith, Pete (2020): Modelling the potential for soil carbon sequestration using biochar from sugarcane residues in Brazil. In Sci Rep 10 (1), p. 19479. DOI: 10.1038/s41598-020-76470-y.
“Sugarcane (Saccharum officinarum[nbsp]L.) cultivation leaves behind around 20[nbsp]t[nbsp]ha−1[nbsp]of biomass residue after harvest and processing. We investigated the potential for sequestering carbon (C) in soil with these residues by partially converting them into biochar (recalcitrant carbon-rich material).”
UK Government: Policy Paper: NIC Greenhouse Gas Removal Technologies Study: Terms of Reference.
“The government asks the National Infrastructure Commission to provide recommendations to government on the technologies that should be deployed to remove greenhouse gases from the atmosphere and deliver negative emissions, the policies needed to incentivise the rollout of these technologies and the timeline of decisions needed by government to enable the UK to use greenhouse gas removal technologies to achieve net zero.”
“In a new research paper published in Climate Policy, we mapped the potential implications that the scientific literature has identified to date, and where knowledge gaps remain.”
Guo, Rui; Wang, Jiaoyue; Bing, Longfei; Tong, Dan; Ciais, Philippe; Davis, Steven J. et al. (2020): Global CO2 uptake of cement in 1930–2019. In Earth System Science Data. DOI: 10.5194/essd-2020-275.
“We adopted a comprehensive analytical model to estimate the amount of CO2[nbsp]that had been absorbed from 1930 to 2019 in four types of cement materials including concrete, mortar, construction waste and cement kiln dust (CKD). Besides, the process CO2[nbsp]emission during the same period based on the same datasets was also estimated.”
