In regard to science, embassies try to promote exchanges by offering scholarships and facilitating and financing contacts between students, scholars, and academic institutions. These activities used to fall under the responsibility of embassy’s cultural section. Today, science and technology have reached a dimension that makes international cooperation indispensable. Issues such as communications, space technology, the peaceful use of nuclear energy, missile technology, and the protection of the environment (e.g. combating problems such as global warming and decreasing bio-diversity) must be tackled jointly. Some embassies, such as the German embassy in London, have a separate section dealing with these issues. Other embassies, such as the US embassy in Berlin. Charge their economic section with taking care of scientific, technological, and environmental questions. The US government has set up regional environmental hubs at 12 embassies to assess environmental problems on a regional basis.