Sentences with phrase «vast oceans covered»

Scientists think that, in the past, water may have flowed across the surface in rivers and streams, and that vast oceans covered the planet.

Not exact matches

Like Earth, Mars must have received a lot of water at birth; some researchers think the plains that cover most of its northern hemisphere were once the bed of a vast, shallow ocean, filled by cataclysmic floods of water cascading out of the southern highlands.

(Note vast areas of the high latitude oceans were covered by ice, during the coldest period and could hence no longer absorb carbon dioxide.)

By tracking the migration journeys of various birds your children will be able to learn and name the countries, continents and oceans that are crossed and the vast distances these animals cover.

Join us for a unique expedition, a voyage into an ocean at the end of the world, cruise through the western and northern regions of this vast glaciated archipelago and discover snow covered mountains and glaciers, stark tundra, sea stacks and ice cliffs.

Others include, the role of the Sun (being the main heat source), the vast oceans which cover over 70 % of the Earth's surface (and the natural factors which determine the storage and release of CO2 back into the atmosphere), water - vapour being the dominant greenhouse gas comprising 98 % of the atmosphere, the important role of low - level clouds which is thought to be a major factor in determining the natural variation of climate temperatures (P.S. Significantly, computer - models are unable to replicate cloud - formation and coverage — which again — injects bias into model).

Viewed from space, some of the earth's most pronounced features are the blue of the vast oceans, the white swirls of moisture - laden clouds and bright swaths of ice covering the poles.

At the northwestern end of the vast, fire - marred range that now covers a land area larger than most countries, temperatures near the Arctic Ocean shore at 70.9 ° N, 81.4 ° E are 86 degrees F (30 C)-- about 40 degrees F (22 C) above average.

And remember, the satellite data are one small part of a vast amount of data that overwhelmingly show our planet is warming up: retreating glaciers, huge amounts of ice melting at both poles, the «death spiral» of arctic ice every year at the summer minimum over time, earlier annual starts of warm weather and later starts of cold weather, warming oceans, rising sea levels, ocean acidification, more extreme weather, changing weather patterns overall, earlier snow melts, and lower snow cover in the spring...

They also explain how the «sea ice extent around Antarctica» is very different from the sea ice in the Arctic because the Arctic is not covered by land, but by ocean, albeit mostly frozen most of the time, whereas Antarctica is a vast continent covered by massive ice sheets with the South Pole at its center.

Roughly 70 percent of the world is covered by oceans, so you can understand how hotter air over them could make a vast difference in the climate system.

Observations suggest lower values for climate sensitivity whether we study long - term humidity, upper tropospheric temperature trends, outgoing long wave radiation, cloud cover changes, or the changes in the heat content of the vast oceans.

How a rising of the ocean waters may flood most of our port cities within the foreseeable future — and why it will be followed by the growth of a vast glacier which may eventually cover much of Europe and North America.

«Arctic Oil & Gas cites recent scientific evidence that huge, floating mats of azolla - a prehistoric fern believed to have covered much of the Arctic Ocean during a planetary hothouse era about 55 million years ago - decomposed soon after the age of the dinosaurs and exist today as «vast hydrocarbon resources» trapped in layers of rock below the polar ice cap.»

During most of the Silurian Period, the vast Panthalassic Ocean covered the northern polar regions, the supercontinent of Gondwana stretched over the southern polar region, and a ring of at least six continents spanned the Equator and middle latitudes.

He is childhood friends with Prince Kiefer of Estard Castle (the only land in a vast world covered by ocean) and a young woman named Maribel who travel with him to find shards to restore the world to its former glory.