Greenpeace volunteers at Newquay airport in March 2007

You might remember that, 18 months ago, we set up ticket exchanges at airports across the country, and called on British Airways to show genuine leadership instead of launching new, unnecessary short haul routes that just add to the huge threat to our climate caused by runaway aviation growth.

While congestion charging schemes to control CO2 emissions from traffic are proving controversial in London and elsewhere, there's a chance we might see some action in Brussels on this problem very soon.

While our own drive to drastically improve car efficiency changes gears, there are of course plenty of other people trying to get the message across. One such group, Mundo Cars, isn't the new line of Slovakian automobiles it might appear to be, but a collaborative effort by several organisations working on transport issues.

Protests by lorry drivers in London and Wales today show the strength of feeling surrounding fuel prices and, as oil hit US$135 a barrel last week, they're unlikely to fall anytime soon. Hauliers want the government to abandon proposed 2p tax increase and so ease the pain, but that would only be a short-term fix for a long-term problem - what's really needed is affirmative action on setting minimum fuel efficiency standards for road transport.

Which is why, if you happened to be in Brussels yesterday morning, you would have seen a bizarre site - six cavemen and women travelling the streets in Flintstones-esque car. (Don't believe me? Watch the video.) They were exposing the stone age thinking (geddit?) of the car industry who, lead by German car manufacturers, have been stifling attempts to improve car efficiency and reduce CO2 exhaust emissions for 17 years. First stop was the headquarters of the car manufacturer's lobby group, the European Automobile Manufacturers' Association (ACEA), to deliver copies of a new report about the impact their industry is having on climate change.

In a few weeks' time on Tuesday 15 April, every fuel company in the UK will be obliged to include a certain amount of biofuel in their petrol and diesel supplies. This is because, to comply with EU policies, the government has decreed we will all be using biofuels whether we want to or not but as you're probably aware, a lot of people have severe concerns about this.

Following last week's direct action maelstrom at Heathrow and the Houses of Parliament, the media has been courting the people involved with features popping up all over the place about the so-called new generation of eco-activists.

A particularly interesting piece went out last night on Radio 4: Graham Thompson (described by the Evening Standard as the "daddy" of the parliament protest group) appeared on The Moral Maze to argue the case that civil disobedience is an acceptable part of protest in the democratic process. Listen again for the inevitable seven days.

Meanwhile on the Guardian's Environment Weekly podcast, our own climate campaigner Joss Garman was in the studio to talk about the 'new breed' of activist. Listen again for... well, forever probably.

But if I come across one more reference to Swampy...

Anna (left) at Heathrow airport yesterday

I’ve been campaigning a long time, though I've never done anything quite like this. Walking out onto the tarmac of the world's biggest airport and climbing onto a plane wasn't like any other Monday morning I've experienced. But with no sign of the government changing its mind on airport expansion, it was a step we felt had to be taken.