There's some stunning photography in this final video from the Arctic Sunrise's arctic expedition. Ice sheets, icebergs, glaciers and (yes) polar bears all feature in a kind of greatest hits package from Greenland and beyond. View it on Youtube for a larger, more panoramic version.

Scientists aboard our ship the MV Arctic Sunrise measure the thickness of the Arctic sea ice.

Today we're expecting an announcement from the National Snow and Ice Data Centre - the US body that monitors the Arctic - about the 'seasonal low' of Arctic sea ice for 2009.

Every year, the Arctic sea ice - the floating cap of frozen ocean that sits over the north of the planet - shrinks and grows with the seasons. In the Arctic summer it melts away and gets smaller, in winter it grows and get bigger. It being mid-September we've just passed the height of Arctic summer, and today the NSIDC will tell us how small the ice cap got this year.

Two more powerful video blogs from Eric Phillips, polar explorer and survival guide aboard the Arctic Sunrise in Northern Greenland. With years of experience exploring both polar regions, Eric describes the changes he's seeing now compared to previous trips, and outlines some of the latest findings of the research team he's providing expert support for.

The Arctic Sunrise is in Greenland to survey melting glaciers and observe the effects of climate change. In this latest update from the tour, Indian journalist Gaurav Sawant decribes his experiences aboard and ponders the implications for the sub-continent. But first web editor Juliette sets the scene...

India seems (and is) quite far away from Greenland and the Arctic. Yet, with the world's second largest population and with major cities like Mumbai (parts of which lie just a few metres above sea level), the country cannot ignore what is happening. India is now a major player in international politics. If its population and leaders start making climate change the political priority, the world will listen.

Just in via our Climate Rescue weblog, here's a beautiful little filmic essay on the realities of climate change from Greenpeace China campaigner Xin Yu (otherwise known as "Fish"), made aboard the Arctic Sunrise during the current expedition to monitor a 100 km² ice island breaking off Greenland's Petermann glacier.

More breathtaking images just in from Nick Cobbing, aboard the Arctic Sunrise in Greenland, where the crew are working with leading climate scientists to monitor the break-up of the Petermann Glacier.

Two great video diaries from Aussie explorer Eric Philips, aboard the Greenpeace ship Arctic Sunrise on their mission to document the impact of climate change on the Arctic:

Read more »