Sentences with phrase «back thousands to millions of years»

The paper discusses reconstructions of global deep ocean temperature, sea level, surface temperature, and climate sensitivity going back thousands to millions of years.

Not exact matches

It's the difference between a few tens of thousands of years, and being able to date back hundreds of millions of years.

But, Pautzke thought, why not raise the fish in ponds until they actually felt the urge to go to salt water, use the streams merely as chutes to send them out to the ocean's rich feeding grounds, wait two years, and — presto — get back hundreds, thousands, even millions of big, healthy trout?

Gerard Terry, an influential political operative and chairman of the North Hempstead Democratic Committee, has for years received government work paying him hundreds of thousands of dollars even as he compiled an income tax debt of $ 1.4 million and battled lawsuits alleging fraud and failure to pay back loans, a Newsday review of public records shows.

Gerard Terry, an influential political operative and chairman of the North Hempstead Democratic Committee, has for years received government work paying him hundreds of thousands of dollars even as he compiled an income tax debt of $ 1.4 million and battled lawsuits alleging fraud and failure to pay back loans.

The earliest confirmed evidence of controlled fire use dates to several thousand years ago but some palaeoanthropologists argue control began as far back as 1 to 2 million years ago.

The mass production of grains through agriculture is only a few thousand years old... Compare that to our ancestors historical existence as hunter - gatherers as far back as a couple of million years, and our current species (homo sapiens) 200,000 - year history as hunter - gatherers.

If the Arctic Sea is covered with ice in the summer - as it has been dating back perhaps thousands, to millions of years - the incoming sunlight is mostly reflected back to space without adding any heat to the Earth.

the claim that the industry has been fracking for 60 years is true but grossly misleading as the current practice involving horizontal drilling and in general aggressive techniques to extract gas from marginal resources only dates back to the 1990s; rather than millions of well using fracking, current practice has only been tested over a few tens of thousands of wells

There are an estimated 3 million shipwrecks around the world, some dating back to thousands of years ago.