Sentences with phrase «in ocean chemistry»

But they are very sensitive to changes in ocean chemistry resulting from human activity.

Changes in ocean chemistry can have extensive direct and indirect effects on marine organisms and the ecosystems in which they live.

The findings reveal a crucial and underappreciated role that animals have in ocean chemistry on a global scale, explained first author Daniele Bianchi, a postdoctoral researcher at McGill University who began the project as a doctoral student of atmospheric and oceanic sciences at Princeton.

Paleo - reconstruction methods are used on several archives, including foraminifera and deep - sea corals, to determine the past variability in ocean chemistry (carbonate, nutrients and trace metals) and to tie these to present - day chemical and biological observations.

Scientists from the Arctic Monitoring and Assessment Programme (AMAP) monitored widespread changes in ocean chemistry in the region.

But they are very sensitive to changes in ocean chemistry resulting from greenhouse gas emissions, as well as to coastal pollution, warming waters, overdevelopment, and overfishing.

This change in ocean chemistry followed a large - scale ice age known as the Gaskiers glaciation.

Instead, the team points out that similar swings in different isotopes» levels, occurring in both parts of the world, suggest that the two regions were experiencing the same changes in ocean chemistry at the same time.

«That overwhelms the natural buffering system for maintaining balance in ocean chemistry,» the Carnegie Institution's Caldeira says.

New fossils found in 480 - million - year - old rocks in Morocco now show that the animals were there all along — changes in ocean chemistry simply prevented their squishy bodies from fossilizing.

For example, on Heron Island Reef in the GBR, variations in pH and aragonite saturation state over one day were greater than the predicted changes in ocean chemistry globally by 2050.

«Experiments have shown how ocean acidification, a change in the ocean chemistry due to the uptake of man - made carbon dioxide, influences the growth and efficiency of marine bacteria as well as the sinking of carbon - rich particles», Dr. Luisa Galgani resumes.

This might be done in part by growing forests (see article) and enriching soils, but it might also need more high - tech interventions, such as burning newly grown plant matter in power stations and pumping the resulting carbon dioxide into aquifers below the surface, or scrubbing the air with newly contrived chemical - engineering plants, or intervening in ocean chemistry in ways that would increase the sea's appetite for the air's carbon.

The findings reveal a crucial and underappreciated role that animals have in ocean chemistry on a global scale.

Paleo - reconstruction methods are used on several archives, including foraminifera and deep - sea corals, to determine past variability in ocean chemistry (carbonate, nutrients, and trace metals) and to tie this variability to present - day chemical and biological observations.

But they are very sensitive to changes in ocean chemistry resulting from greenhouse gas emissions, as well as to pollution, warming waters, overdevelopment, and overfishing.

We wondered, was this simply a coincidence or a direct result of changes in ocean chemistry?»

Seagrasses also undergo a high rate of photosynthesis that may serve to buffer changes in ocean chemistry that affect shell - building organisms.

The newest professor in the University of Rhode Island's College of the Environment and Life Sciences, Hollie Putnam, thinks some corals and shellfish might have good enough «memories» to buffer the changes in ocean chemistry that are resulting from global climate change.

Victoria Fabry, a visiting research scientist at the Scripps Institution of Oceanography and a member of the NAS panel, said researchers can already detect and measure CO2 - driven changes in ocean chemistry.

Beyond the sea level rise itself, the ancient geologic and geographic changes probably led to a buildup of oxygen in the atmosphere and a change in ocean chemistry, allowing more complex life - forms to evolve, he said.

The Southampton - led research, published in Nature Geoscience, now offers an explanation for these major changes in ocean chemistry.

Extensive underwater volcanism during ridge spreading led to rapid alteration of volcanic deposits and major changes in ocean chemistry.

First, EPOCA aims to document the changes in ocean chemistry and geographical distribution of marine organisms across space and time.

«The other carbon dioxide problem», «the evil twin of global warming», or part of a «deadly trio», together with increasing temperatures and loss of oxygen: Many names have been coined to describe the problem of ocean acidification — a change in the ocean chemistry that occurs when carbon dioxide (CO2) from the atmosphere dissolves in seawater.

Areas that are naturally more resilient to stressors, such as climate change impacts or changes in ocean chemistry

The Network strengthens members» ability to effectively manage coral reefs threatened by warming seas, bleaching, coastal development, pollution, overfishing, and changes in ocean chemistry.

Theme 1 focuses on past and present spatiotemporal changes in ocean chemistry and biogeography of key marine organisms.

Even with almost no chance of the high end of climate sensitivity estimates being right, the odds of substantial, prolonged and disruptive climate change (and changes in ocean chemistry) are still plenty high enough to justify a sustained push toward an energy menu that works for the long haul.

This change in ocean chemistry can strip away the building blocks of coral reefs, weakening an important link in the oceanic food chain.

Although the technologies are still nascent, the idea that humans might help remove carbon from the skies as well as put it there is a reasonable Anthropocene expectation; it wouldn't stop climate change any time soon, but it might shorten its lease, and reduce the changes in ocean chemistry that excess carbon brings about.

IANS: Climate change is causing toxic metals trapped in the sediment beds of the Hooghly estuary in the Indian Sunderbans to leach out into the water system due to changes in ocean chemistry, say scientists, warning of potential human health hazards.

Excess carbon dioxide in the atmosphere — in addition to contributing to climate change — is absorbed by the ocean, making sea water more acidic and leading to a suite of changes in ocean chemistry.

The extra CO2 absorbed means a change in ocean chemistry: the oceans are becoming increasingly acidic at an unprecedented rate, with unknown consequences for corals, shellfish and juvenile fish.

And the changes in ocean chemistry are the sort of thing that can be expected to have a direct effect on the geological record if carbon levels rise far enough.

These feedback processes are related to things such as clouds, water vapor, ice, changes in ocean chemistry, and changes in vegetation.

In their statement, the scientific academies say the oceans have absorbed about a quarter of the carbon dioxide emitted to the atmosphere by human activities since the industrial revolution, resulting in rapid and irreversible changes in ocean chemistry.

The combined effects of changes in ocean chemistry, biology, and hydrodynamics on alkalinity.

Read / Purchase the Report Ocean Acidification: A National Strategy to Meet the Challenges of A Changing Ocean (2010) Excess carbon dioxide in the atmosphere — in addition to contributing to climate change — is absorbed by the ocean, making sea water more acidic and leading to a suite of changes in ocean chemistry.

To investigate changes in ocean chemistry that could result from higher temperatures and carbon - dioxide concentrations, the researchers used an Earth - system model called the Integrated Science Assessment Model.