I have met and interviewed many of these environmental heroes over the years for various publications in the UK and the US, and have been in awe of their commitment, resourcefulness and personalities.
The government deserves some credit for having provided clarity on the funding available to renewable energy projects out to 2019. But delaying its acceptance of the Fourth Carbon Budget any longer is bad for business, consumers and the UK's energy security alike.
Earth Day has to be about more than just turning off lights. We need to reflect seriously on the impact that our individual choices are having on the planet and its inhabitants and start to make better ones.
In 1996, landfill tax was introduced at a rate of £8 per tonne to encourage councils and businesses to develop more robust recycling programmes. The ...
'Seeds are buried treasure,' says Simran Sethi, global speaker, educator and environmentalist. Ms Sethi talks about seeds with passion because, she says, humans have an interdependent relationship with them: 'seeds are life', she tells me; nature's most early beginnings, without which humans could not have thrived. And now they are under threat.
Travelling through the countryside of Germany and Denmark, there is hardly at any point you can't see any wind turbines spinning in the background. Even in deeply conservative Texas, in the US, wind turbines are becoming a more dominant factor in the landscape and here is the thing - people like it.
When volunteers come out to conservation projects they like to get involved with surveys in the hope of seeing interesting animals. But volunteers don't always realise where the data they are helping to collect goes.
What's driving these changes is the Conservative's social philosophy infused with ideals of individual responsibility and ending the 'evils of dependency'. It's social malevolence, not economic pragmatism. The same can be said of the environment. Environmental campaigners are calling for government action but taking action is anathema to Conservative ideology.
You may have seen apocalyptic headlines in the press recently. Headlines warning that climate change will be felt 'on all continents and across the oceans', and that the world faces a 'violent, sicker, poorer future'. Well stay with me, and I'll explain why we might not be facing 'apocalypse now'.
It sounds good, doesn't it, a Council on Ethics established by a Finance Ministry to investigate if companies violate ethical guidelines and, if the answer is yes, to recommend the government divests?
It might seem strange to some that dust from the Sahara is falling on their cars in England. Stranger still, that Saharan sand is mixing with general air pollution from both Europe and the UK to bring about the maximum possible health warning for air quality to parts of the country. But air pollution is hardly a new phenomenon...
Choices made in the next few years will affect the risks of climate change. If conservatives are right, and adapting to climate change is a better strategy than mitigating it, this has to start with adapting our economies - the source of unsustainable environmental change.
If information and exhortations to change behaviours are ineffective, then what influences the habits - or practices - that we all engage in on a daily basis?
THE LATEST REPORT FROM THE UN's Intergovernmental Panel on Climate Change predicts a 2% drop in the world's agricultural crop yield every 10 years until the end of the century. There are dire warnings of food shortages.
We all need to do our bit to look after it. It's not always easy being green but there's loads of things we can all do to do our bit. To show my support for the planet this Saturday I'll be heading down to London's Southbank Centre to take part in WWF's annual event Earth Hour.
We've learnt a lot since the prospect of fracking for shale gas first reared its head in the UK. One thing hasn't changed though - fracking remains incompatible with building the kind of green energy future we need to avert the very worst climate change.