Sentences with phrase «time earth»

Panic hits every time the earth moves.

The last time the Earth spent an extended period at ~ 425 ppm CO2, the oceans were about 25m above today's sea level.

Stone carvings in what is now Turkey appear to depict a comet crashing at the same time Earth rolled into a 1,000 - year cooling period known as Younger - Dryas, a study in the journal Mediterranean Archaeology and Archaeometry found.

Once upon a time the earth was cold and covered with great layers of ice.

The last time the earth experienced warming at anything like the pace we now expect was during the Paleocene - Eocene Thermal Maximum, about 55 million years ago, when temperatures rose by about 11 degrees Fahrenheit over the course of around 20,000 years (which is a much slower rate than the current pace of warming).

Over much of that time the Earth was particularly rich in biodiversity.

«The last time the Earth experienced a comparable concentration of CO2 was 3 - 5 million years ago, the temperature was 2 - 3 °C warmer and sea level was 10 - 20 meters higher than now,» a press release for the bulletin stated.

Given current emissions trajectories, there is a chance that the temperature increase by 2100 could be near 6oC.21 The last time Earth exhibited a global mean temperature that high, what are now sagebrush grasslands in the southwestern Wyoming and Utah were covered by subtropical, closed canopy forests interspersed with open woodlands (Townsend et al., 2010), reminiscent of subtropical areas in Central America today.

The last time Earth's atmospheric levels of CO2 reached 400 ppm was during the Pliocene Epoch, between 5 million and 3 million years ago, according to the University of California, San Diego's Scripps Institution of Oceanography.

Scientists directly measure thermal conductivity of iron at planetary core conditions for the first time The earth's magnetic field has been existing for at least 3.4 billion years thanks to the low heat conduction capability of iron in the planet's core.

At the same time the earth will accumulate heat at the rate of delta Et.

So, with confidence, Man's conclusion was:» now is 1C warmer planet than 1000y ago» Ian Plimer's Zombies can not say that: -» data for 1012AD is almost non-existent — because at that time the earth was flat — 70 % of the GLOBAL surface area didn't exist»... Because the» Fake Fundamentalist» have being constantly lying that» at that time THE WHOLE PLANET was warmer, Mann and the rest of the Swindlers can rub Fake's noses... on innocent people's expenses.

That was the last time the Earth experienced a long period with a climate that, on average, was warm before cold ice ages began to alternate with mild interglacials.

«'' Vaughan Pratt February 10, 2012 at 2:01 am Girma, when would you say was the last time Earth experienced a rise of 15 °C in a mere millennium?

Girma, when would you say was the last time Earth experienced a rise of 15 °C in a mere millennium?

The last time the Earth's temperature deviated that much from the average of recent millennia was during the last ice age.

The last time Earth experienced a Great Dying was during a dangerous transition from glaciation and to hothouse.

Eccentricity can help that by lengthening the time earth spends further away allowing more time for ice to build up.

If CO2 is responsible for earth not being a snowball, and 90 % of the time the earth is in an ice age, shouldn't we make sure enough CO2 survives the end of the Holocene by pumping even more of it into the atmosphere?

If Salby's theory is correct, then the last time the earth was covered with glaciers, the level of CO2 fell low enough to extinguish all plant life.

The last time the Earth significantly cooled was during the 14th to 19th centuries â $» a period known as the Little Ice Age.

Last time the earth had 500 - 700 ppm it was an iceless hothouse with very high sea levels, and current climate science can explain why.

For less than 20 per cent of time Earth has had ice.

The last time the earth averaged a few degrees colder, most of North America was covered in a mile thick sheet of ice.

However, the last time the earth's average temperature was 5k lower than to - day mile - high ice sheets covered much of northern Europe and America.

«The last time Earth was as warm as it is now was about 125,000 years ago, and we know sea level was 6 meters higher than it is today,» Nerem said.

The last time the earth was 4 °C warmer, it was essentially ice - free.

CH, if you have some idea of what is going to happen with the extra 5 W / m2 forcing in the 21st century, you need to say it, because otherwise people will just think it will simply get warmer like the last time the earth had so much CO2 which was in the Eocene epoch (a pre-Antarctic ice shelf period).

The last time Earth experienced a sustained CO2 increase was between 17,000 and 11,000 years ago when the Earth emerged from the last ice age.

But on its fourth orbit, the capsule rotated and for the first time Earth became visible through the windows.

Half the time, the earth is closer to the sun than the barycenter, and half the time the earth is farther away.

Considered by fans as the «definitive» entry in the series, the PlayStation ® Vita handheld entertainment system version of this classic title is the first time Earth Defense Force 2 will be available in North America.

He gets the planet in question, this time the earth, ready for its fate by punching very, very large holes in it.

The last time Earth experienced CO2 levels this high was millions of years ago.»

Eukaryotes became multicellular in the precambrian at the same time earth's oxygen levels were rising.

«From time to time the Earth's mantle belches out huge quantities of magma on a scale unlike anything witnessed in historic times,» Lesher said.

Because plutonium has a half - life of 81 million years, nearly all traces of it had vanished by the time Earth cooled 4 billion years ago.

The team studied storm development from the Pliocene era, roughly three million years ago, and chose that time period because it was the last time the Earth had as much carbon dioxide as it does now, and the changes in climate from it can play a major role in storm formation and intensity.

It is breaking ground for similar networks elsewhere, including Japan (the Advanced Real - time Earth Monitoring Network in the Area, or ARENA) and Europe (the European Sea Floor Observatory Network, or ESONET).

That was the last time Earth experienced a long period with a climate that, on average, was warm before cold ice ages began to alternate with mild interglacials.

At that time Earth briefly experienced the hottest climate it has seen since the time of the dinosaurs, an event called the Palaeocene - Eocene thermal maximum.

Around the time Earth formed, a slightly larger world coalesced by a much different star.

The last time the earth was that warm was 130,000 years ago, and sea level was four to six meters higher than today.

Global warming has been going on for so long that most people were not even born the last time the Earth was cooler than average in 1985 in a shift that is altering perceptions of a «normal» climate, scientists said.

It was the third time Earth was imaged from the outer solar system but the first time humankind got a heads - up, so people could look up and smile or wave for the camera.

One thing is certain though: at eight time Earth's mass, its gravitational pull is much, much stronger.

If scientists perform Gould's test, it will not be the first time the Earth has been used to test general relativity.

The last glacial period spanned from 110,000 to 10,000 years ago; during that time the Earth was colder and glaciers covered significantly more land.

Dressing pegs the general upper limit for rocky planets as 1.6 times Earth size.

It covered 30 times the Earth - sun distance — 30 astronomical units — to reach Pluto in just about nine years.