it will take grahammic change in all aspects of society from private sector involvement, green infrastructure, and investments, it's going to need to be a broad brush strategy, and it needs to accelerate rapidly today because we're approaching a point whereas greenhouse gas emissions continue to rise it get more and more difficult to stop that trajectory we're on in terms of higher emissions but as we've contributed more to the atmosphere we're locked into more and more warming, more sea level rise. this is an urgent issue, and it's an urgent need to simultaneously reduce our greenhouse gas emissions and talking about those climate changes that we're essentially locked in to . >> professor, can the warsaw conference do some of the things you were just talking about? >> you know the ambition of this conference is to prepare a new international agreement that is due to be ready by 2015 in paris, and it's an important step in that way. it's sometimes very difficult as you know to negotiate between two or three or four countries. imagine here we have 195 countries trying to agree on the protectio