Is food packaging a blight on our environment, or might it help to save it? Why does the food industry spend less than any other on developing new products? And who really has the power to make change happen on our supermarket shelves? Professor Paul Trott has the answers. After all, as academics around the world will tell you, he wrote the book.

Overfishing, disease, pollution, poor water quality and dredging have changed the face of our undersea landscape, and brought some species close to extinction. Find out why Dr Joanne Preston is re-introducing the native oyster to British waters - and what will happen if we allow this humble mollusc to take back control of our water quality.

Bringing back the native oyster to save our seas

Billions of barrels of oil. Commuters in smog masks. Heavy metals leaching into the soil… Boats, planes and cars can have a bad reputation for environmental impact. Yet, when it comes to protecting the planet, the sustainable use of transport has a vital role to play.

Plastic pollution is reaching crisis level. Of the 1 million plastic bottles sold every minute across the globe, only 14% are recycled. The vast amount of unrecycled plastic that ends up in our oceans contaminates marine ecosystems and harms ocean life.

A huge part of the problem is the strong plastic used in drinks bottles: polyethylene terephthalate (PET). It currently takes hundreds of years for PET to break down naturally in the environment.