HS2 and Wildlife, Aphid Catching, Why Grass Matters

The Wildlife Trusts are demanding £420 million should be spent on conservation along the route of the HS2 rail line. MPs will debate HS2 later today.

The world's longest running insect survey turns 50 this week. Charlotte Smith visits the Aphid traps at Rothamsted Research in Hertfordshire.

And, about 60% of UK agricultural land is grass. We begin a week examining this fundamental ingredient in milk and meat production.

Presented by Charlotte Smith and produced by Sarah Swadling.