(Aerial view of Svalbard, one of my pics, iq 2007)

A lot of our information on the state of the ice cover in the Arctic and Antarctic comes from measurements from NASA. This week they invited journalists to a (climate-friendly internet-based) briefing on the progress of the IceBridge mission, which they describe as “an airborne mission for earth’s polar ice”.
A lot of it is about the technical procedures involved, so if you’re generally interested in how data gets collected by scientists flying over Antarctica (and the weather and work conditions down there) this is an interesting site to look at. There is also a blog from members of the team. They are in the Antarctic at the moment, but there is also info on the worrying state of the Arctic sea ice based on the latest measurements on the site.
Tomorrow (Thursday) they will be running a live chat on their findings so far, details on that website if you’d like to join in.

(Photo: Prof. Thomas Pettke, Institute for Geology, University Bern)

Cough pastilles? Ingredients for your Christmas baking?
No, these green crystals, which can be up to a centimetre in size, are actually olivine, the major constituent of the earth’s mantle.

This is what it looks like in vulcanic rock, in this case from Mount Erebus in Antarctica. (Photo by Hannes Grobe, Alfred Wegener Institute).
So what is the green rock doing on the ice blog? Well when olivine weathers and decomposes, it can remove carbon dioxide from the atmosphere. Scientists have been conducting experiments to find out how much, and whether artificially weathering the mineral could help counteract ocean acidification.
Researchers from the Alfred Wegener Institute for Polar and Marine Research in the Helmholtz Association and the KlimaCampus of Hamburg University have just published some model calculations. They say around a ton of olivine dissolved in water would be necessary for each ton of CO2 that could be transferred from the atmosphere to the ocean using this method.They assume the method is not suitable to neutralise present-day greenhouse gas emissions completely, but could be interesting on some scale as just one factor of many.
The Alfred Wegener Institute stresses it is not out to pave the way for the commercial implementation geoengineering measures with this research. “It makes an important contribution to improving the scientific database on geoengineering methods,” says Prof. Karin Lochte,the Director of the Institute.
Given the lack of progress on the large-scale emissions reductions that would be necessary to keep global warming to the 2 degree target, it’s hardly surprising that there is a strong interest in techniques like geo-engineering, whether it be installing mirrors in space or measures like this one.
Of course there are plenty of risks involved. The recent Biodiversity Conference in Nagoya, Japan, called for more information to help assess the potential effectiveness and the risks of geoengineering to the environment and biodiversity.
There’s more detail on all this on the AWI website

Although I’m a journalist myself I still often find myself wondering why some things make it into the headlines with some media and others don’t. Sometimes you hear something in the news in the morning that disappears very rapidly. And sometimes, especially if you’re interested in and concerned about climate change, you read and hear things that shock or worry you then, again, don’t make it into any other media.
I have a couple of examples here. The first I can find an explanation for, although I don’t find it justified and hope the situation will change in the next few weeks.
Scientists from one of Germany’s most renowned scientific institutes, the Leibniz Institute for Marine Sciences at Kiel University, set off on an Arctic expedition today.They’ve joined forces with Greenpeace. The Greenpeace ship Esperanza is transporting some giant “test-tubes” up to the Svalbard archipelago, where they’ll be lowered into the water to look into the effects of climate change on the marine ecosystems. The scientists are particularly interested in the acidification of the oceans. I’ll be writing more about this later – in fact I’ll be catching up with the team and finding out more first-hand. But the reason I’m mentioning it today is that when I searched the news agencies, I didn’t find anything in English about this venture, although it’s using new, unique technology, and we know how susceptible the Arctic is to climate change – and what a key role it plays in regulating the world’s climate. I assume the reason is the ship left from the German port of Kiel, so only attracted German media. But come on folks, this is not a German story, the implications are as global as you can get.
I wasn’t able to go up to Kiel for the launch, but one of my colleagues went, so I’ll have more on that soon.
The other story which is even more worrying is one I came across in the online version of the German news magazine Focus
It’s headlined (in German)”Melting poles: No Ice, No Summer”.
The article reports on a story in the magazine Science which warns of the dangerous effects of melting ice in the Arctic and Antarctic on the deep ocean currents which help regulate the climate. In a highly over-simplified nutshell, it seems possible that at some point in the future, melting fresh water from the glaciers could reduce the salinity of the sea-water to the extent where the pump effect of dense salt water sinking into the depths would be hampered. This could interrupt the flow of warmer water which helps keep the climate of the British isles, southern Scandinavian and part of northern Germany mild.
Now why am I finding it difficult to get any more information on this from other media?

We haven’t heard a lot about the iron fertilisation controversy in the Antarctic for a while – at least not in the mainstream media.

(The German research vessel Polarstern, belonging to the Alfred Wegener Institute for Polar and Marine Research, conducting the research with Indian partners).

– See blog entries of 9.-15-1-2009 for the background –
Are you surprised to hear that the controversial experiment did not produce the desired results? Artificially fertlizing the ocean with iron is not a way to substantially reduce the concentration of CO2 in the atmosphere!
It seems the scientists on board the Polarstern were surprised by what did actually happen during the German-Indian experiment.

A last look at Arctic Tromsö for this time.

Mind your step?

The Arctic Frontiers conference came to an end in Tromsö on Friday with more presentations and q/a sessions on different aspects of scientific research and findings on the region, from deepsea observatories to melting permafrost and the problems of climate change for indigenous peoples, including reindeer-herders in Arctic areas.
The papers are all available online.
Pick up some scientific papers from Arctic Frontiers

Meanwhile there’s been no stop to developments on climate change in the headlines. President Obama is going full speed ahead with his plans to tackle climate change.

The German government has reached an agreement on a (highly controversial)package to make people scrap their old cars, buy new ones, and – ideally, in theory – reduce emissions.
The German government has also given the go ahead for the iron fertilization experiment in the Antarctic we were discussing before I left for Tromso.
Latest on iron
WWF and others are protesting. There have been some alarming measurements of warming in the Antarctic. The new international Renewable Energies Agency has been launched. And WWF has come up with a new study on the economics of combatting climate change.
The Ice Blogger could blog on all day. Instead, I’ll leave you to check out the links and enjoy a couple of pics of the amazing colours of Arctic Norway from the air.