05.04.2021

# Calls & events

0 Comments

Job: Postdoctoral Associate ( Electrical Engineering-The Research Foundation for The State University of New York at Stony Brook)

Deadline: 27. April 2021

"Seeking a postdoc for an interdisciplinary project in the emerging field of ocean carbon dioxide removal (ocean CDR) and negative emissions technologies (NETs) that aims to mitigate ocean acidification while decreasing the atmospheric carbon dioxide concentration."

LINK


Read more »

18.03.2021

# New Publications

0 Comments

Butenschön, Momme; et al. (2021): Alkalinization Scenarios in the Mediterranean Sea for Efficient Removal of Atmospheric CO2 and the Mitigation of Ocean Acidification

Butenschön, Momme; Lovato, Tomas; Masina, Simona; Caserini, Stefano; Grosso, Mario (2021): Alkalinization Scenarios in the Mediterranean Sea for Efficient Removal of Atmospheric CO2 and the Mitigation of Ocean Acidification. In Front. Clim. 3, p. 14. DOI: 10.3389/fclim.2021.614537.

"This study investigates the case of ocean alkalinization, which has the additional potential of contrasting the ongoing acidification resulting from increased uptake of atmospheric CO2 by the seas. More specifically, we present an analysis of marine alkalinization applied to the Mediterranean Sea taking into consideration the regional characteristics of the basin."

LINK


Read more »

25.01.2021

# Media

0 Comments

Our Shared Seas: A Primer for Philanthropy on Ocean-Climate Interventions

"One useful categorization of ocean-climate efforts divides interventions into three areas: the mitigation of future greenhouse gas emissions, the accelerated sequestration of atmospheric CO2, and adaptation efforts to help vulnerable habitats and communities adapt to the stresses of climate change."

LINK


Read more »

23.11.2020

# Media

0 Comments

Phys.org: Could kelp help relieve ocean acidification?

"Ethereal, swaying pillars of brown kelp along California's coasts grow up through the water column, culminating in a dense surface canopy of thick fronds that provide homes and refuge for numerous marine creatures. There's speculation that these giant algae may protect coastal ecosystems by helping alleviate acidification caused by too much atmospheric carbon being absorbed by the seas."

LINK


Read more »

12.10.2020

# Media

0 Comments

World Resources Institute: Leveraging the Ocean's Carbon Removal Potential

"As the need for climate action becomes more urgent, the ocean is gaining attention as a potential part of the solution. Approaches like investing in offshore energy production, conserving coastal ecosystems and increasing consumption of sustainable ocean-based protein offer opportunities to reduce emissions. In addition to these opportunities, a range of ocean-based carbon removal approaches could help capture and store billion of tons of carbon."

LINK


Read more »

01.09.2020

# Media

0 Comments

LegalPlanet: Time to Get Serious about Climate Change and Oceans

"Science can unlock powerful tools to fight climate change and ocean acidification, but only if we fund research and govern it well."

LINK


Read more »

09.02.2020

# New Publications

0 Comments

Lovenduski, N. S.; et al. (2020): The Potential Impact of Nuclear Conflict on Ocean Acidification

Lovenduski, Nicole S., Cheryl S. Harrison, Holly Olivarez, Charles G. Bardeen, Owen B. Toon, Joshua Coupe, Alan Robock, Tyler Rohr, and Samantha Stevenson (2020): The Potential Impact of Nuclear Conflict on Ocean Acidification. Geophysical Research Letters 47 (3). https://doi.org/10.1029/2019gl086246.

"We demonstrate that the global cooling resulting from a range of nuclear conflict scenarios would temporarily increase the pH in the surface ocean by up to 0.06 units over a 5‐year period, briefly alleviating the decline in pH associated with ocean acidification."

LINK


Read more »

30.12.2019

# Media

0 Comments

Eos: Dead Reefs Keep Calcifying but Only by Day

"While algae photosynthesize during the day, they take up carbon dioxide from the water and release oxygen. At night, however, algae respire like humans, taking up oxygen and exhaling carbon dioxide."

LINK


Read more »

11.12.2019

# New Publications

0 Comments

Hofmann, M.; et al. (2019): Strong Time Dependence of Ocean Acidification Mitigation by Atmospheric Carbon Dioxide Removal

Hofmann, M., S. Mathesius, E. Kriegler, D. P. van Vuuren, and H. J. Schellnhuber (2019): Strong Time Dependence of Ocean Acidification Mitigation by Atmospheric Carbon Dioxide Removal. Nature Communications 10 (1). https://doi.org/10.1038/s41467-019-13586-4.

‌"Here, we show that stringent mitigation strategies consistent with the 1.5 C scenario could, indeed, provoke a critical difference for the ocean’s carbon cycle and calcium carbonate saturation states. Favorable conditions for calcifying organisms like tropical corals and polar pteropods, both of major importance for large ecosystems, can only be maintained if CO2 emissions fall rapidly between 2025 and 2050, potentially requiring an early deployment of CO2 removal techniques in addition to drastic emissions reduction."

LINK


Read more »

02.09.2019

# New Publications

0 Comments

Petrou, K.; et al. (2019): Acidification diminishes diatom silica production in the Southern Ocean

Petrou, Katherina; Baker, Kirralee G.; Nielsen, Daniel A.; Hancock, Alyce M.; Schulz, Kai G.; Davidson, Andrew T. (2019): Acidification diminishes diatom silica production in the Southern Ocean. In Nature Climate change 462, p. 346. DOI: 10.1038/s41558-019-0557-y.

"Here we show that diatom silicification strongly diminishes with increased acidity in a natural Antarctic community. Analyses of single cells from within the community reveal that the effect of reduced pH on silicification differs among taxa, with several species having significantly reduced silica incorporation at CO2 levels equivalent to those projected for 2100."

LINK


Read more »