We need yields to grow to meet growing demand, but already climate change is slowing those yields," said Michael Oppenheimer, a Princeton professor and an author of the report.
That combined with the size of the market, the high frequency of use and the immediacy of need yielded a perfect on-demand storm.
As g4gm model needed yield estimates at a determinate age of the forest, the Gotilwa+ model calculations were performed in such a way that the simulation started with a tree plantation and so the year of the simulation was assumed to be the age of the forest too.
Ganging modules together and using an electric clutch to shut down one module when its power isn't needed yields a 45percentt gain in efficiency over conventional engines.
Comments that focused on use or needs yielded more spontaneous thoughts (80 20, comparison across coding categories: Chi Square value > 18, df = 2, p <.001).
A ten-year bond need only yield 2% to provide the same expected return.
For donor countries, ensuring that men and women everywhere have access to the services they need would yield strong social returns in improved education and healthcare.
When vital national interests are at stake, both consistency and moral certainty need to yield to the realities of a complex and interlocking world.
"The only straitjacket on all of this unfortunately is the need to yield about £220m or thereabouts worth of savings in legal aid in criminal cases," he said.
Ultimately, China will need to yield to some form of international verification system (which it has done already, on a limited scale, for the clean-development mechanism under Kyoto).
