If currenttrends continue, then by 2050 there will be more than a million in the US alone.
如果目前的趋势继续下去，那么到2050年，仅美国就将有100多万人口。
2
If currenttrends continue, by the year 2010 carbon emissions in the United States will soar to a level more than one-third higher than were those in 1990, according to official projections.
根据官方预测，照目前的趋势，到2010年，美国的碳排放将飙升至比1990年高出三分之一以上的水平。
3
Currenttrends suggest that the first requirement will easily be met.