I think it is important to welcome companies like Shell to enter the debate an work on advancing to developing low carbon energy such as producing hydrocarbons from biomass such as algae in future instead of oil. A transition from a oil based energy provider to one that uses sustainable biomass is a win-win from an energy security and also a reduced carbon perspective. This is going to have to happen sooner or later as oil supply dwindles in the future, so inevitably it is in their interests.

Being dismissive is not going do anyone any favours. It just alienates people and makes environmentalist groups appear as if ther are looking for a regression in society.