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Ocean Acidification

All articles tagged with #ocean acidification

environment1 day ago

Ocean Antacid Experiments Signal Hope, Yet Hurdles in Climate Fight

Scientists led by Adam Subhas test ocean alkalinity enhancement by dispersing sodium hydroxide in the Gulf of Maine to raise surface pH and promote CO2 uptake, a potential but uncertain method to counter ocean acidification and remove carbon; while it could help in key regions, it would require massive energy, infrastructure, careful monitoring, and emission reductions, and questions about safety and long-term ecological impacts remain.

via The New York Times|
#carbon-removal#environment#geoengineering
science4 months ago

Ocean Acidification Threatens Sharks' Teeth and Predatory Power

Recent research shows that ocean acidification caused by increased CO₂ levels is weakening shark teeth, which could disrupt predator-prey dynamics and impact marine ecosystems. The study highlights the importance of maintaining ocean pH levels to preserve shark hunting abilities and overall ocean health, emphasizing the broader ecological consequences of climate change.

via Indian Defence Review|
#climate-change#marine-biology#marine-ecosystems
science4 months ago

Ocean Acidification Threatens Sharks' Teeth and Predatory Power

A new study suggests that increasing ocean acidity due to climate change could damage shark teeth, potentially impairing their ability to feed and affecting marine ecosystems. Experiments showed that teeth in more acidic conditions suffered twice as much damage, which could threaten shark populations unless they adapt by increasing tooth replacement or strengthening. The findings highlight the broader impact of ocean acidification on marine predators and the importance of reducing CO2 emissions.

via The Guardian|
#climate-change#marine-biology#marine-ecosystem
science1 year ago

Rising Emissions Drive Ocean Acidification Deeper

Researchers at ETH Zurich have developed a 3D model to study ocean acidification, revealing that increased atmospheric CO2 has caused acidification to penetrate deeper into the oceans, reaching an average depth of 1,000 meters by 2014. The study highlights the impact on marine life, particularly organisms like pteropods, whose calcium shells are vulnerable to dissolving in more acidic waters. The model used historical CO2 data to simulate changes in ocean chemistry over time, showing significant acidification in areas like the Atlantic meridional overturning current.

via Phys.org|
#3d-modeling#carbon-emissions#climate-change
environment1 year ago

"Uncovering the Hidden Impact of Climate Change on Marine Life"

A new study led by NIOZ marine biologist Katharina Alter reveals that fish and invertebrate animals are significantly more affected by warmer and more acidic seawater than previously known. The study introduces a new research method that considers the combined effects of climate change on all species, rather than canceling out seemingly contradictory results. The findings suggest that up to 100% of biological processes in marine animals could be affected by ocean warming and acidification, with potential ecological shifts impacting marine ecosystem structures. The research also indicates that measures to mitigate atmospheric carbon dioxide levels could help reduce these impacts.

via Phys.org|
#climate-change#environment#marine-life
climate-science1 year ago

"Urgent Investigation Needed for Effects of Geoengineering, Experts Warn"

The chief of the US atmospheric science agency, NOAA, emphasizes the urgent need for scientists to investigate the potential impacts of climate geoengineering, including techniques such as ocean seeding and cloud spraying. With a focus on the oceans' ability to sequester CO2 and the potential shutdown of the Gulf Stream ocean currents, NOAA is collaborating with UK scientists to monitor the Atlantic Meridional Overturning Circulation. Despite political challenges, the agency stresses the non-partisan importance of strong climate science in addressing national and global security concerns, as the effects of the climate crisis are increasingly felt by US citizens.

via The Guardian|
#climate-change#climate-crisis#climate-science