On this week's ClimateCast, we're talking rubbish.Tom Heap visits a historic landfill which was supposed to be buried beneath ground, but due to climate change and coastal erosion, the waste from our past is "coming back to terrorise us" by polluting our coastlines and water.He speaks to mudlark Monika Buttling-Smith about searching for treasure in the Thames and the importance of conserving our history - but the right parts of it. Just miles away AJ McConville of Thames21, who work with communities to improve waterways in London, shows Tom how a historic landfill in Tilbury is being churned up due to coastal erosion.But could there be a cost-effective solution to the "zombie rubbish"? Tom asks Andrew Jenkins, founder of Ecological Landfill Mining and Recycling.Producer: Emma Rae WoodhouseEditor: Paul Stanworth