I made a small snowman in my garden today. I have to call it a small snowman since it really is small. And the snow is not good enough for making snowballs - which are the basic building block of any snowman's body. But it was still really fun. I couldn't remember how long it was since I had made a snowman or had so much fun. I am thankful for what was the first and probably the last snow this winter, although I have read that the government has plans to make it snow again because we are in the middle of a pretty serious drought in Beijing.

Some great news has come in from Greenpeace lobbyists at the European Parliament, where the EU environment committee have given the thumbs up to reducing CO2 emissions produced by cars.

The group of MEPs resisted efforts by German car manufacturers to weaken down the proposals and have recommended that by 2012 all new cars should emit no more than 130g of CO2 per km (the current EU average is 158g). Even those this doesn't match the 120g level we and other groups were proposing, this is a big turnaround as when the committee went into session, it seemed certain a compromise package riddled with loopholes would get the nod.

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.

London mayor Ken Livingstone was never going to get an easy ride over his planned changes to the congestion charge, and Porsche's threat of a legal challenge is perhaps no big surprise. Famed for its fast, sleek, inefficient cars, it claims the new £25-a-day charge on gas guzzlers is "unfair and disproportionate".

As well as the promised judicial review, the company has started a petition for the Jeremy Clarksons of this world to voice their opposition to Ken's plan. "We know that huge numbers of people in London and across the rest of the country support our case," they claim. "They agree with us that it would be bad for London - that it is unfair and sends the wrong message about what sort of a city London is whilst having no meaningful benefit on the environment."

As reported in yesterday's news, London's congestion charge is being modified again to improve the capital's green credentials. From October, vehicles emitting the highest amounts of CO2 will have to pay £25 a day which gets a big thumbs-up, while the most efficient cars will get into central London free of charge.

Some commentators have pointed out that this effectively changes the purpose of the charge from reducing congestion to reducing pollution, and that's no bad thing. According to the World Resources Institute, road transport spews out around 10 per cent of global emissions (pdf), so providing incentives to move to more efficient models is going to do a lot to cut those exhaust fumes.