Carbon Emissions

Geoengineering technologies are not yet deployable globally, but support for them is advancing fast, thanks to backing by powerful advocates eager to start experiments. But no silver bullet for climate change exists, and we must not abandon proven methods for the sake of a promise that one will be found

In Nigeria, mass transit systems are chaotic and in many places non-existent; no Nigerian city has an intra-city rail system and only Lagos has a bus rapid transport scheme. Commuters have to rely on small buses (most of which are old and creaking), taxis and auto rickshaws or tricycles (popularly called keke).

Globally, political leaders are lauding the acceptance of the global and legally binding Paris Agreement on Climate Change at COP 21 as a historical moment. It achieves a goal long believed unattainable. However, judged against the enormity of the challenge and the needs and pressure from people on the ground demanding a global deal anchored in climate justice (“system change, not climate change!”), the Paris Agreement can only be called a collective failure and disappointment. Read a critical assessment by hbs colleagues from around the world.