"If they continue to rise at the present rate, the reefs will be gone within decades.
But within decades aerospace technology had improved and planes were able to fly longer distances.
He thinks contact with an alien civilisation could happen within decades.
Most scientists believe the Arctic will be ice-free within decades.
In the late 150s second consulships were prohibited altogether, but within decades the rules were broken.
The effort was led by small island nations, some of which are likely to disappear under the waves within decades.
He also made compost, and was so successful that within decades all Paris's market gardeners adopted his principles.
Within decades, that seeming unity was obliterated by the issue politicians had avoided since the three-fifths compromise, in 1787.
Propelled by the lake trade, Cleveland became a city and Chicago became the region's colossus within decades of its founding.
Glaciers are shrinking at record rates and many could disappear within decades, the UN Environment Programme UNEPP) said yesterday.
Habitat destruction is continuing and perhaps accelerating, so some now-common species certainly will lose their habitat within decades.
