As world leaders line up in Copenhagen to agree a new climate treaty, we've also been working hard to secure a result that will have a positive impact on the global climate - by protecting Indonesia's forests.

Today we're publicly releasing new evidence that Sinar Mas, Indonesia’s biggest palm oil producer, has been persistently engaging in widespread illegal deforestation and peatland clearance. We presented presented the evidence in this dossier to one of their biggest customers, the giant Unilever corporation. Now Unilever has decided to stop buying palm oil from Sinar Mas.

Ever feel powerless? Worried that the problem is too big? Worried that you can't have an impact?

(Timberland are a big shoe company who, after being told to sort out their supply chain by you lot, helped us put pressure on big cattle companies to stop their businesses destroying the Amazon rainforest. This guy is their CEO.)

Cattle ranched on deforested areas of the Amazon. There's going to be less of this, thanks to you

In what our executive director is calling "a significant victory in the fight to save the Amazon," four of the largest cattle companies in the world are joining forces to ban the purchase of cattle from areas of cleared rainforest in Brazil.

This success is the culmination of our Slaughtering The Amazon campaign, which began back in June. The report which launched the campaign showed that cattle ranching is the single biggest driver of deforestation in the Amazon, and that four-fifths of the areas that have been deforested now have cattle on them. Read more »

Over the past five years, our Kleercut campaign has pressured Kimberly-Clark, (the makers of Kleenex tissues) to help save Canada's Boreal forest.

Today, in what can only be described as 'a tremendous victory for ancient forests' the company has announced a new policy that places it among the industry leaders in sustainability, and which brings the Kleercut campaign to a successful completion. Read more »

Last night another piece of the reaction to our Slaughtering the Amazon report fell into place, as British shoemaker Clarks agreed not to source leather products from Amazon deforestation. Read more »

Saved! The Koeye river delta in the Great Bear Rainforest, British Columbia © Mauthe/Greenpeace

Tamara is communications director here in the UK, but in a previous life was a Greenpeace forest campaigner in both Canada and China.

An era ended for me this week when the government of the Canadian province of British Columbia finally protected my extraordinarily beautiful Great Bear Rainforest. Today, more than one-third of the largest intact area of temperate rainforest left in the world is legally off-limits to logging - an area half the size of Switzerland. For many people it's a pretty emotional moment.

I say "my" somewhat facetiously, because clearly I'm conscious of the fact that this is a global treasure that belongs to us all. And yet because I'm from British Columbia, and because the Great Bear campaign is where I cut my teeth as a campaigner, it feels a bit like it is my forest. It was a long, hard slog to get to this week, I must say, but along the way we 'baby' campaigners certainly learned a lot.

Great news just in from Poland, where work on the giant Jóźwin IIB open-cast pit and coal mine near Konin has been suspended. Following a legal challenge submitted last December by Greenpeace, a Polish court has ruled that there were problems with the environmental assessment process undertaken before work began on the site. Construction has now been halted while the process is reviewed.

This is a big victory - Jóźwin IIB was the site for our most recent Climate Rescue Station, set up last winter to remind delegates at the United Nations Climate Change Conference in nearby Poznań that tackling climate change and building new coal-fired power stations are fundamentally incompatible aspirations. It will be particularly well-received by many of the peaceful activists who were attacked by mine workers at the end of last year during the protests.

An old Philips TV at a scrap yard in Ghana

Last week we broke the shocking story about what actually happens to our electronic waste; instead of being safely recycled in the UK or Europe, much of it is instead being exported as 'second-hand goods' to places like Nigeria, China and India. Once there it's either sold for scrap, illegally dumped, or broken apart for recycling by some of the poorest people in the country, with no safety measures to protect them from the dangerous toxic chemicals like mercury, cadmium and lead which the e-waste contains.

Apple's detox promise: close but not quite there yet

Mac fans in our office (and there are more than a few) were getting excited yesterday - we were expecting an announcement from MacWorld 2009 in San Francisco, confirming that Apple would as promised be removing all toxic PVC plastic and brominated flame retardants (BFRs) from its entire new product range.

Confidence was high that this was going to happen because we've had the word from the man himself - Apple CEO Steve Jobs - from as far back as May 2007 that toxic PVC and BFRs in Mac computers would be history by the end of 2008. His enthusiam for the subject, of course, initially stemmed from the success of our Green my Apple campaign, which generated huge support and discussion from Mac addicts worldwide.