Tiny motors can tackle rising carbon dioxide levels

 Nanoengineers, including one of Indian-origin, have designed tiny machines - smaller than the width of a human hair - that rapidly zoom around in water, remove carbon dioxide and convert it into a usable solid form.

Ocean acidification didn't kill marine life: Study

Ocean acidification didn't kill marine life: Study

British researchers have debunked a long-prevailing theory that ocean acidification from the asteroid impact that killed the dinosaurs caused the extinction of marine molluscs.

Scientists reveal ocean acidification from space

Scientists reveal ocean acidification from space

In a technology that can revolutionise the way marine biologists and climate scientists study the ocean, British scientists have revealed ocean acidification from space.

Ocean acidification may cause shrimp to taste bad

 Researchers have found that as the oceans become more acidic, the taste of shrimp - a popular seafood item - may become less desirable to the human palate.

Human-induced nitrogen pollution big threat to ocean

Human-induced nitrogen pollution big threat to ocean

 Human activity, particularly in industrial and agricultural processes, has had significant impacts on the upper ocean nitrogen cycle, a new study warns.

Sunderbans' water getting toxic: Scientists

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.

Ocean acidification slowly damaging coral reefs

Ocean acidification slowly damaging coral reefs

Scientists have found that acidification in ocean can lead to disintegration of the coral reefs.

Greenhouse gas levels in atmosphere hit new high

Greenhouse gas levels in atmosphere hit new high

The amount of greenhouse gases in the atmosphere reached a new record high in 2013, propelled by a surge in levels of carbon dioxide, the World Meteorological Organisation warned today.

Today`s ocean acidification outpacing 56m year-old ancient upheaval

Some 56 million years ago, a massive pulse of carbon dioxide into the atmosphere sent global temperatures soaring.

Local factors causing significant spikes in coastal ocean acidity

A new study has documented dramatic, natural short-term increases in the acidity of a North Carolina estuary.

Rising ocean acidification leading to anxious fish

A new research study has revealed that increase of carbon dioxide uptake in the oceans is resulting in fish getting anxious.

Temperature limit too high to avoid climate change: Study

An internationally agreed target to limit rises in global average temperatures to within 2 degrees Celsius is around double the threshold that would avoid catastrophic climate change.

Present ocean acidification at highest level since 300m years

A new study has revealed that the oceans are more acidic now than they have been for at least 300 million years, due to carbon dioxide emissions from burning fossil fuels.

Marine animals dissolving in Southern Ocean acid

Researchers have revealed that the shells of sea snails are dissolving in a small patch of the Southern Ocean.

`Acidification may wipe out corals in one generation`

The world`s coral reefs may be wiped out within a single generation thanks to the ravages caused by ocean acidification, pollution and overfishing, says an Australian expert.

Oceans` acidic shift may be fastest in 300 million years

The world`s oceans are turning acidic at what could be the fastest pace of any time in the past 300 million years.

Ocean acidification turning ‘Nemo’ fish deaf

Recent studies have shown that ocean acidification causes fish to lose their sense of smell.

Marine ecosystems under threat from ocean acidification

Experiments by a team of scientists has determined that acidification of the oceans as a result of increasing levels of atmospheric carbon dioxide (CO2) could have significant effects on marine ecosystems.