Countries move from labs to seas to study the implications of ocean acidification. On a pleasant morning when fifty-four-year-old Australian marine diver David Hannan was gearing to plunge into the deep sea, a bunch of American scientists were ready to set sail for the Arctic Ocean. In another corner of the world at Dona Paula in Goa oceanographers were contemplating plans to measure coastal pH along the entire Indian coastline.

For full text: http://www.downtoearth.org.in/content/changing-basic-nature

Dust is all that's needed to plunge the world into an ice age. When blown into the sea, the iron it contains can fertilise plankton growth on a scale large enough to cause global temperatures to drop. The finding adds support to the idea of staving off climate change by simulating the effects of dust - perhaps by sprinkling the oceans with iron filings.

The seasonal variability of phytoplankton biomass in the Arabian Sea, though a well researched topic, its inter-annual variability is less explored and understood. Analysis of the satellite-derived chlorophyll pigment concentration in the Arabian Sea during 1997

In a world plagued by the effects of climate change, ocean iron fertilization and other geoengineering techniques1 could help to respond and adapt to this global environmental crisis.

London: Australian scientists have found that whale faeces could help combat global warming by allowing the Southern Ocean to absorb more carbon dioxide.

This document provides an overview of the interactions between the ocean and climate and describes the impacts of climate change on the marine ecosystems and the goods and services
they provide human society. Further, it outlines a set

Ocean fertilization has been highly publicized as a cost effective strategy for mitigating climate change. However, these costs do not effectively account for the observed shortcomings in sequestration efficiency, nor the total economic value of ecosystem function which might be lost due to ocean fertilization, and have been significantly underestimated.

Shipboard iron- and macronutrient-addition experiment was conducted in the Central Indian Ocean, to investigate the variations of carbon in different forms and its records for plankton activities. Experiments were conducted in four 500-L acrylic barrels with the surface seawater near 24

The breadth and complexity of the global ocean, covering more than 70 percent of Earth's surface, have challenged our ability to explore, comprehend, predict and even control its processes and behavior. It is now generally accepted that the world oceans are by far the largest sink of anthropogenic CO2 one the dominant cause of global warming on our planet.

Bangladesh Academy of Science and the academies of 69 other countries around the world in a joint statement yesterday warned that ocean acidification, one of the world's most important climate change challenges, may be left off the agenda at the United Nations Copenhagen conference.

Pages