world population trends

基本解釋

With the aging of world population trends in the intensification of the aging phenomenon has become a major strategic issue.
隨著世界人口老齡化趨勢(shì)的加劇，老齡化現(xiàn)象已成為全球性重大的戰(zhàn)略問(wèn)題。
If those trends hold in the future, the researchers estimate that half the world's population could face a climate-induced food crisis by 2100.
如果那些趨向?qū)?lái)停止的話，研究人員估計(jì)：到2100年世界上一半人口將面臨氣候?qū)е碌募Z食危機(jī)。
Chapter 2 introduces the recent situation of aging population in the world, especially in china. It also forecasts the trends of aging in the 21st century.
第二章介紹世界人口老齡化的現(xiàn)狀和趨勢(shì)，及中國(guó)人口老齡化的突出特點(diǎn)，預(yù)測(cè)了中國(guó)在21世紀(jì)前半葉的人口老齡化趨勢(shì)。

In the 1940s and 1950s, by extending the trends of population growth and food production, it was scientific fact that the world was on a collision course with massive starvation.
FORBES: Long-Term Forecasts Are Mostly Worthless