Sentences with phrase «unprecedented warming over»

Even if the entirety of the adjustments were wrong, we still see unprecedented warming over the past 40 years.

Schmidt's rough estimate, which he posted on Twitter, is based on the extraordinary and unprecedented warming over the past 12 months, during which time global surface temperatures have shot past the 1 °C above pre-industrial level.

Not exact matches

A new study that looks at climate change over the past 11,300 years — a record length of time for any study — suggests that the current trend of global warming is unprecedented.

While the planet's surface temperatures over the past century have risen to unprecedented levels, records have shown a slowdown in the pace of warming over the past 15 years.

Unprecedented warm waters off the Pacific coast over the past two years have led fish that marine mammals feed on to move to colder waters — making it difficult for seals and sea lions to nourish themselves, let alone feed their pups.

Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia.

I was somewhat involuntarily thrust into the center of the public debate over climate change at this very time, when the «Hockey Stick» temperature reconstruction I co-authored, depicting the unprecedented nature of modern warming in at least the past millennium, developed into an icon in the debate over human - caused climate change [particularly when it was featured in the Summary for Policy Makers (SPM) of the Third Assessment Report of the IPCC in 2001].

... a pronounced strengthening in Pacific trade winds over the past two decades — unprecedented in observations / reanalysis data and not captured by climate models — is sufficient to account for the cooling of the tropical Pacific and a substantial slowdown in surface warming through increased subsurface ocean heat uptake.

The record - breaking year of 2005 had below - average dust over the Atlantic, very warm sea surface temperatures, and an unprecedented four hurricanes that reached category 5, the highest classification.

Abstract:... Here we show that a pronounced strengthening in Pacific trade winds over the past two decades — unprecedented in observations / reanalysis data and not captured by climate models — is sufficient to account for the cooling of the tropical Pacific and a substantial slowdown in surface warming through increased subsurface ocean heat uptake.

There is nothing «natural» about these extremes of weather over the last 2 years, or about the unprecedented ozone hole in the Arctic last year (troposphere warming from greenhouse gases caused stratospheric cooling to below threshold temperature for polar stratospheric cloud generation and ozone destruction).

The Independent Online reports that an unprecedented coalition of blue - chip US companies and environmental lobby groups will urge President Bush next week to get serious about global warming, calling for caps on carbon dioxide emissions that would cut greenhouse gases by 10 - 30 per cent over 15 years.

Now, scientists say they are certain that «warming in the climate system is unequivocal and since 1950 many changes have been observed throughout the climate system that are unprecedented over decades to millennia.»

Our key finding, that the recent warming trend is unprecedented over at least the past 1,000 years, has not only been overwhelmingly affirmed by more than a dozen subsequent studies, but has been vastly strengthened.

Over the years I had heard various predictions and what I considered extreme claims like «Arctic warming is unprecedented» which conflicted with historical and archaeological evidence.

From my point of view, I saw that the climate had varied very widely over the last several thousand years, and in no way did I believe that proxy data (which averages and mutes annual signals) showed that the recent warming was unprecedented over the last 1000 or 2000 years.

Consequently, the next time a serious drought takes hold of some part of the world and the likes of Al Gore blame it on the «carbon footprints» of you and your family, ask them why just the opposite of what their hypothesis suggests actually occurred over the course of the 20th century, i.e., why, when the earth warmed - and at a rate and to a degree that they claim was unprecedented overthousands of years - the rate - of - occurrence of severe regional droughts actually declined.»

In conclusion, as stated in the first paragraph, modern warming over the last 25 years is not exceptional, nor unprecedented in spite of the gigantic accumulation of atmospheric CO2 emissions during the fossil fuel era.

It doesn't matter whether some of this organic material is now being revealed because of warming over a long period of time or because of unprecedented warmth over a short period of time.

If human CO2 causes indisputable, relentless, unequivocal, unprecedented, accelerating and tipping point catastrophic global warming, then why is the U.S. cooling over the last 15 years?

You still get the hockey stick and you still arrive at a conclusion that is just as alarming — the recent warming is unprecedented over at least the last 400 years.»]

First, warming precedes CO2 rises in the temp reconstructions over geological time; second, failure of the Hockey Stick to support «unprecedented recent warming»; third, the failure to find the model predicted (so - called) «hot spot.»

Zekes sees the following as «more likely than not (> 50 %)»: «Recent warming is unprecedented over the past millennium.»

«Recent warming is unprecedented over the past millennium.

2 (Recent warming is unprecedented over the past millennium): I would agree with Judith that this is far too uncertain.

The fact is that the actual peer - reviewed scientific research shows that (a) the rate of warming over the past century is unprecedented as far back as the 20,000 years paleoclimate scientists are able to extend the record and (b) that warming can ONLY be explained by human influences.

In testimony before the US Senate in 2003, he stated: It is the consensus of the climate research community that the anomalous warmth of the late 20th century can not be explained by natural factors, but instead indicates significant anthropogenic, that is human influences... More than a dozen independent research groups have now reconstructed the average temperature of the northern hemisphere in past centuries... The proxy reconstructions, taking into account these uncertainties, indicate that the warming of the northern hemisphere during the late 20th century... is unprecedented over at least the past millennium and it now appears based on peer - reviewed research, probably the past two millennia.

«Over the past millennium, late 20th century snowpack reductions are almost unprecedented in magnitude across the northern Rocky Mountains and in their north - south synchrony across the cordillera... the snowpack declines and their synchrony result from unparalleled springtime warming that is due to positive reinforcement of the anthropogenic warming by decadal variability.

Recently, an article citing over 80 graphs from scientific papers published in 2017 — and another 55 graphs from 2016 — established that modern «global» warming is not actually global in scale, and that today's warmth is neither unprecedented or remarkable when considering the larger context of natural variability.

Michael Mann's infamous «hockey stick» graph, used by the IPCC «experts» as propaganda to convince gullible elites that modern warming was unprecedented, has had its science and respectability torn asunder by a multitude of experts over the years.

Hundreds Of Scientific Papers Challenge «Global» Warming Recently, an article citing over 80 graphs from scientific papers published in 2017 — and another 55 graphs from 2016 — established that modern «global» warming is not actually global in scale, and that today's warmth is neither unprecedented or remarkable when considering the larger context of natural variaWarming Recently, an article citing over 80 graphs from scientific papers published in 2017 — and another 55 graphs from 2016 — established that modern «global» warming is not actually global in scale, and that today's warmth is neither unprecedented or remarkable when considering the larger context of natural variawarming is not actually global in scale, and that today's warmth is neither unprecedented or remarkable when considering the larger context of natural variability.

The increasing power of computer reconstructions since MBH98 and 99 resulted in the more sophisticated «spaghetti graphs» using multiple proxies, which somewhat modified the findings of the earlier hockey stick, but reinforced the notion of a world rapidly warming over the last century, in a manner unprecedented for at least a thousand years.

The doubters also seem unable to accept that the «Hockey Stick» graphs, which show that post-industrial global warming is unprecedented over the past two millennia, have been independently replicated several times.

From last week, an article in Science Express by Buntgen et al reconstructing European summer temperature for the past 2500 years, finding that recent warming is unprecedented over that time frame, and providing some historical insights into the societal challenges posed by climate instability (listen here for an interview with mike about the study on NPR's All Things Considered).

The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.1 Earth - orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale.

Denialists like yourself are eager to «disprove» the «hockey stick» because if recent, and future, warming due to AGW is not unprecedented over human history then one can more plausibly argue that there's nothing to worry about.