intensive, not away from carbon completely, to some of the less intensive, of which gas is a case. that may increase demand for gas as we transition. you are right, we need to plan for this, because although i will be unpopular to saying this in some quarters, there is a case for investing in gas to support the transition, that needs to be thought about very carefully, because to do so would not necessarily be the wrong thing to do from climate change point of view. we need to think about the things very carefully. stay with us on bbc news, still to come: thin ice! why china�*s global image leaves olympic sponsors with a slippery situation. this is the moment that millions in iran have been waiting for. after his long years in exile, the first hesitant steps of ayatollah khomeini on iranian soil. south africa's white government has offered its black opponents concessions unparalleled