Jules Pretty said that global food production will have to increase by 50-100% in the next 30 to 40 years, in order to feed Earth's growing population.
While the risk of any individual developing glioma would still be small, a 40 percent increase could still mean some thousands more new cases in the u.
The Fed has consistently undercut the effectiveness of its purchase programmes by declining to specify the levels of inflation and nominal growth it would like to see or would be prepared to tolerate.
Long run economic constraints include declining oil production and exports and pressure on water supplies caused by rapid population growth, industrial expansion, and increased water pollution.