19 2045 or 2050 is wrong. reporter: he run it is camping ground and says it imprecise and irresponsible. it s a long-term problem and they have to start thinking about it now, don t they? to a degree. but if all your information is based on supposition and theory. reporter: or science. or science. science has to depend on facts and if the facts aren t there then they come up with supposition saying we believe. reporter: on the climate change front line we meet phillip hill. it is going to happen sometime. i don t dispute that. reporter: they bought a sea front home from where you can t see the sea. to him the stone barrier feels impregnable. the roizing water a distapt threat. if we have to move then, we do. at the moment i d enjoy 20 or 30 years that the lovely place and enjoy it. reporter: it is a lovely