Exactly four weeks to go now until polling day, and the campaign's really been flying today - talking with residents, businesses, charities and the media about what a Green vote will mean in 2010.

I was glad to start the day addressing what ought to be one of the pressing issues of this election - the Trident nuclear weapons replacement scheme.

Speaking to a small crowd at Brighton pier as part of the Flame of Hope rally, I pointed out that both main parties still support replacement of this deadly weapon, and are willing to use £76 billion of tax payer money over 30 years to pay for it.

Greens have long argued that a nuclear deterrent is not only hugely costly, but also irrelevant to the security threats we face today.

The signing of a new nuclear arms reduction treaty by President Obama and Russian President Medvedev is hopefully a sign that the world is ready to take real steps towards disarmament - and the UK urgently needs to do the same.

Leaving the rally I made my way to the new stadium development in Falmer, the soon-to-be new home of the Brighton Seagulls.

The new stadium looks very impressive, even in development, and I was pleased to find that supporting the local economy and environment were very much part of the developers plans.

For example, hundreds of tonnes of chalkland excavated during the construction are being re-used sustainably, making local agricultural land easier to use and saving 22,000 lorry trips, while efforts also seem to be being made to reduce car journeys to the stadium.

Promoting the local economy by providing jobs for local businesses is also a priority.

A snatched lunch with Rod Liddle from the Sunday Times, a quick chat with a journalist from the Telegraph, and then to Carlton Hill in Kemptown to meet with the users of a local deaf people's centre.

This was a wonderful opportunity to communicate with a too-often overlooked part of the community.

Easier access to taxis for disabled people (a long-standing local Green campaign) was a key topic. And jobs, education and pensions remain areas of great concern.

Finally, a wonderful evening at Lush - for which many thanks to all the organisers.

What better demonstration that it's perfectly possible to put innovation, sustainability and ethical practice at the heart of its business model, and still be a great success.

I'm delighted that Lush is supporting my campaign in Brighton Pavilion, and has even re-issued its famous Green Party bath bomb for the occasion!