California's scientists warned us 30 years ago about climate change.

Now scientists are warning that many of them could collapse.

And Russian scientists are warning that this year's long hot summer may be followed by others.

For decades, scientists have been warning the world about global warming.

And the planet, a scientist warns, will fry in a year.

But leading scientists warn against putting too much reliance on forests.

But 24 years later, as scientists warn of a new, imminent eruption, the fear has not returned.

Innumerable scientists, especially the boys who built the A - bomb, have warned us of it.

Scientists warn that the extreme weather we have witnessed in many countries could be the opening act on our future.

But scientists warned that the weekend feat was only the first step in what is sure to be a long series of clinical trials.