China leads research in 90% of crucial technologies â a dramatic shift this century
The United States tops the remaining areas in an assessment of 74 technologies.
The United States tops the remaining areas in an assessment of 74 technologies.
In a world that can seem lacking in optimism, researchers share their opinions on books that stimulate thoughts â and actions â for a better future.
Updated estimates of the worldwide sources and sinks of anthropogenic carbon dioxide provide a firmer basis for monitoring climate action.