With projected low growth, the economy would need less saving and more spending to use resources fully, hence the lower natural rate of interest. (frbsf.org)
What we're seeing are rates of increase in greenhouse gases and warming that exceed natural rates by a factor of 100. (discovermagazine.com)
This new experiment induced carbon to fall 34 times as fast as natural rates for nearly two weeks — the highest such rate ever observed outside the laboratory. (scientificamerican.com)