Greta Thunberg criticises Science Museum over reported Shell ‘gagging clause’ Greta Thunberg (Aaron Chown/PA) Teenage climate activist Greta Thunberg has criticised the Science Museum following reports it signed a “gagging clause” with oil giant Shell over sponsorship of one of its exhibitions. Sections of a contract between the London museum and Shell, published online by campaign group Culture Unstained, appeared to show an agreement “not to damage the goodwill and reputation” of the company. Shell’s sponsorship of the Our Future Planet exhibition – featuring carbon capture and storage technologies and nature-based solutions to the climate crisis – was previously criticised by environmental activists.