Philip goes back to his roots to uncover the bio-diversity of the brownfield sites of Greater Manchester.
He visits two places on the coast of south-east England to argue that sea level is never constant, and is not simply determined by changes to our climate.
Philip reveals that, contrary to what we often hear, our bird population is doing better than might be expected - and in the most surprising places.
Philip travels to Lewes in East Sussex to reveal that there's nothing new about river flooding.
Philip visits the West Midlands and the Thames Gateway to celebrate the biodiversity of our former industrial waterways.