OTEC and CO2 sequestration

Christopher Barry, has an article on OTEC and CO2 sequestration at This article also discusses the subject of dissolved CO2 in the deep water which is being brought up by an OTEC system.

We have a paper from 1989, Carbon dioxide release from OTEC cycles, by Herbert J. Green and Peter R. Guenther that discusses this issue, in the OTEC Library.

McKillop on what should replace the Kyoto treaty

Andrew McKillop, a person not known for mincing his words, writes about why he thinks the Kyoto treaty market-only mechanisms will fail to reach the set targets for reducing greenhouse gases and what we should do instead. McKillop also mentions OTEC as one of the “almost totally ignored large-potential renewable energy resources“.

No more Arctic Ice

The Independent and The Washington Times report that the arctic seawater ice is rapidly disappearing. In some areas the ice cover has thinned as much as 40% between the 1960s and the early 1990s. New satellite based data has just been published which shows that within 100 years there may not be any arctic ice left, with dire consequences for polar bear and seal populations. The melting of massive amounts of fresh water in the… Continue reading

Pollution creates measurable acidification of the oceans

Ken Calderia, a climate specialist at Lawrence Livermore National Laboratory in California and his collegue Michael Wickett has created scenarios showing that with current rate of CO2 emissions pH levels in the oceans could hit levels only seen during global catastrophes. Nature has an article (or PDF file) and CDNN has an article as well.

No Kyoto down-under

Australia stops the ratification of the Kyoto agreement, even though they have signed it, claiming it will costs jobs and damage their industry, despite that they had one of the easier targets to meet. New Scientist has the detail.

Australia is one of the big proponents for UCG, as described below.

Seawater as CO2 filter

One of the major issues with keeping people in underwater habitats has for a long time been been the chemicals needed to scrub the CO2 from the air. Aquarius, the underwater laboratory in Florida uses 25 kilo of chemicals every day. Now Lew Nuckols of the US Navy have figured out how to use seawater to do the job instead. New Scientist article [subscription required].

This is pretty cool as I have always… Continue reading

Doubts about plankton as a carbon sink

New Scientist (16 January 2002) reports from the recent Ocean Sciences meeting in Hawaii about new computer simulations which Jorge Sarmiento and colleagues from Princeton University have performed with regards to using plankton blooming as a carbon sink to reduce CO2 in the earths atmosphere. The model simulates how factors such as ocean chemistry and water circulation would affect the process if 160,000 km2 of ocean was seeded with iron for a month.… Continue reading

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