I am delighted to see that it is highly likely we will belatedly be doing our bit like Arnie to combat climate change, the warnings have been ignored for too long.

Maggie tried in vain 16 years ago to put this on the worldwide agenda. Today, warnings about global disasters are made almost on a daily basis.

One way to reduce carbon emissions is obviously to reduce the number of vehicles on our roads, which can only be achieved by considerably improving our appalling public transport. I can never understand why our public transport is so dreadful.

Why don’t railway companies think more about the needs of our commuters, provide enough carriages so that all passengers have seats? Would you ever turn up at the theatre and be denied a seat having paid good money for your ticket? Why is this allowed to happen to rail travellers?

I cannot understand how our health and safety regulations allow passengers, sometimes elderly, to have to stand for long journeys because there are not enough seats and they are constantly jostled, causing them considerable discomfort. This seems to me a serious issue for health and safety where a blind eye is being turned.

Why can’t we have inspectors similar to Ofsted to monitor our railways to ensure the rail companies are delivering what they should, that the service is clean and reliable and their staff are helpful?

If motorists are to be encouraged to use railways, then rail companies have to think ahead and provide cheap or even free car parking to make it an easy and attractive alternative, this is another big headache for commuters. And rail prices should be set more competitively; charging 5 star prices for a 1 star service will simply not do.

There is much that could be done to improve bus services too. People don’t want to use our route from Ely to Cambridge because it is too slow and tortuous and goes through all the villages. My suggestion is that they have two services, a speedier one that gets from A to B in the quickest time possible, and a second one which serves the villagers too. That way, everyone would be happy. I would be only too pleased to hop on if that was the case.

In Cambridge we are lucky, we have excellent cycle lanes and can get on our bikes. I’m sure it won’t be long before David Cameron tries them out to push his green credentials.

Update: More on railways from this Telegraph blog.