Podcast von Imre Balzer, Julia Köppe, Yasemin Yüksel, auf spiegel.de; 23.02.2023, 06.00 Uhr (Paywall)
„CO₂ nicht nur einsparen, sondern aus der Luft zurückholen – das verspricht die sogenannte Direct-Air-Capture-Methode. Noch ist das Verfahren teuer und energieintensiv. Hat es trotzdem Potenzial?“
„Atlanta, Georgia, February 22, 2023: Ocean Visions released the latest in a series of digital road maps designed to accelerate responsible research and development for ocean-based solutions to the climate crisis. Representing the sixth in a growing series, the new road map on microalgae cultivation is intended to catalyze action around the most critical needs to safely advance the field.“
North Sea Farmers (NSF) is an independent and not-for-profit sector organisation for the European seaweed industry. By enabling their members to become successful with their seaweed ambitions NSF hope to shape an innovative and prosperous sector in Europe. NSF works in the entire seaweed value chain and facilitates knowledge exchange on sustainable seaweed cultivation, production, marketing, education, policies and research, and facilitates joint innovation projects.
Jiajun Wu, David P. Keller, Andreas Oschlies IN: Earth Syst. Dynam., 14, 185–221, https://doi.org/10.5194/esd-14-185-2023
In this study, the authors investigate the maximum physical and biogeochemical potential of macroalgae open-ocean mariculture and sinking (MOS) as an ocean-based carbon dioxide removal (CDR) method. Embedding a macroalgae model into an Earth system model, they simulate macroalgae mariculture in the open-ocean surface layer followed by fast sinking of the carbon-rich macroalgal biomass to the deep seafloor (depth>3000 m), which assumes no remineralization of the harvested biomass during the quick sinking. The authors also test the combination of MOS with artificial upwelling (AU), which fertilizes the macroalgae by pumping nutrient-rich deeper water to the surface.
by Vanessa Suarez & Alyson Lee on carbon180.medium.com
„Congress closed out this monumental year with a massive $1.7 trillion omnibus agreement, including $154.1 million* in annual appropriations for carbon removal. In line with Carbon180’s fiscal year 2023 (FY23) recommendations, these funds support critical priorities for advancing carbon removal including agricultural research, tree nurseries, geologic carbon storage permitting, and more. A couple of new bills were also included in this year’s spending package, including the Growing Climate Solutions Act (reinforcing the importance of advancing soil carbon research) and the SUSTAINS Act (offering private companies the opportunity to contribute funds to federal conservation programs).“
on businesswire.com; Feb 20
„Heirloom, a direct air capture company permanently removing carbon dioxide (CO2) from the atmosphere, and Leilac, a decarbonisation technology partner, have signed a Memorandum of Understanding (MOU) for the use of Leilac’s kiln technology in Heirloom’s direct air capture (DAC) solution.“
by Autonomous University of Barcelona on Phys.Org; Feb 20
„Research led by the Institute of Environmental Science and Technology of the Universitat Autònoma de Barcelona (ICTA-UAB) in collaboration with an international scientific team discovered that the exchange of carbon between the atmosphere and ocean is highly modulated by a unique group of photosynthesizing plankton called coccolithophores.“
Thorsten Rieke & Thomas Jahn, handelsblatt. ; 20.02.2023 – 13:21 Uhr
„Großbritannien verfolgt ehrgeizige Klimaziele, setzt aber weiter auf Kohle und Gas. Das CO2 soll mit der CCS-Technologie eingefangen werden – zum Ärger der Klimaschützer.“
press release on arpa-e.energy.gov; Feb 16
„On Feb 16, the U.S. Department of Energy (DOE) announced up to $45 million in funding to support a new program aimed at facilitating the development of the marine carbon dioxide removal (mCDR) industry through scalable Measurement, Reporting and Validation (MRV) technologies. Carbon dioxide removal is a top priority for President Biden and mCDR has the potential to be a key component in achieving America’s net-zero goals. – ARPA-E Launches Program to Develop Marine Carbon Capture Measurement Framework.“
Xavier Dupla, Benjamin Möller, Philippe C. Baveye, Stéphanie Grand IN: Soil Science 74 (1); https://doi.org/10.1111/ejss.13343
This study evaluates the legal sustainability of ERW with regard to trace element contents in soils. The authors compare different trace element accumulation scenarios considering a range of rock sources, application rates and national regulatory limits.
