Sentences with phrase «warming event occurred»

Scientists have unearthed a new bird species from fossils in the Canadian Arctic dating back about 90 million years, making them the oldest records of avian species found so far north and suggesting an intense warming event occurred during the late Cretaceous period.

«Instead, more than 1000 years of human occupation passed before a rapid warming event occurred, and then the megafauna were extinct within a hundred years.»

The broader Hemispheric and regional picture shows that warm events occurring during the two most recent winters were much more extreme than the cold outbreaks and are consistent with a long ‐ term and accelerating warming trend.

Not exact matches

In a recent analysis of climate events from last year, 2016, scientists determined three events — record - breaking global heat, a heat wave over Asia, and a «blob» of unusually warm water in the Northern Pacific — could not have occurred without human - induced climate change.

And if such an «off the chart» event can occur when the world has warmed by less than 1 °C, what sort of extreme events will occur by 2050, when the planet could be as much as 3 °C hotter?

The surge in melt events corresponds to a summer temperature increase of at least 1.2 - 2 degrees Celsius (2.2 - 3.6 degrees Fahrenheit) relative to the warmest periods of the 18th and 19th centuries, with nearly all of the increase occurring in the last 100 years.

Events that would have been expected once in 100 years before global warming can now be anticipated to occur once in 80 years.

Events like this occurred in most years once global temperatures reached 1.5 °C and 2 °C warmer than pre-industrial times,» said lead author Dr Andrew King.

The researchers hypothesized that the leaf miners that are seen in the Mexican Hat fossils appeared in that area because of a transient warming event, a number of which occurred during the early Paleocene.

Other researchers have used computer models to estimate what an event similar to a Maunder Minimum, if it were to occur in coming decades, might mean for our current climate, which is now rapidly warming.

Last year, Cooper spotted a similar pattern in North America, with megafauna going extinct during ancient warming events (which occurred at slightly different times in the Northern Hemisphere).

It's unclear whether this year's strong El Niño event, which is a naturally occurring phenomenon that typically occurs every two to seven years where the surface water of the eastern equatorial Pacific Ocean warms, has had any impact on the Arctic sea ice minimum extent.

Otto and her colleagues count how often the weather event of interest occurs in a warmed world compared with 18th - century Earth.

What's more, O'Gorman found that there's a narrow daily temperature range, just below the freezing point, in which extreme snow events tend to occur — a sweet spot that does not change with global warming.

Such analyses, while useful, only paint a broad picture of snowfall's response to global warming, and may miss specific events, like a large blizzard that may occur over a day or two.

But the risks are increasing in both regions, with such an event at least 40 percent more likely to occur in the springtime with warming, but up to 80 percent in the Seine region and 90 percent in the Loire.

The Paleocene - Eocene Thermal Maximum (PETM)- an ancient warming event that occurred about 56 million years ago - is often thought of as a potential framework for future climate change.

If proxy data can confirm that sea ice was indeed the major player in past abrupt climate - change events, it seems less likely that such dramatic abrupt changes will occur due to global warming, when extensive sea - ice cover will not be present.

While this recent heat wave occurred earlier than usual and was widespread, it wasn't nearly as bad as the one that blanketed Europe for weeks in 2003, an event also found to be more likely to happen in a warming world.

Although it stands to reason that a warming climate could worsen storm intensity since a warmer atmosphere can hold more moisture, Henson cautioned, «Even when researchers find that a given type of disaster has become more likely, a rare event is still going to be rare — and it can occur without any help from greenhouse gases.»

One looked at the historical temperature record and compared how often such severe heat waves occurred a century ago versus today using 3 - day averages; the other used climate models that simulate a world with and without warming to see how the odds of such an event shifted.

By building a sonic database, scientists can track long - term changes to reefs and respond to any sudden shifts, such as big coral bleaching events that can occur when ocean waters suddenly warm.

El Niño events cause a big temperature anomaly and so, on top of the already warmed seas, the temperatures get far too hot and extensive bleaching occurs.»

Our current research in this area focuses on understanding the paleoenvironmental implications of a radical change in sedimentary iron biogeochemistry in the mid-Atlantic U.S. during the Paleocene - Eocene Thermal Maximum (PETM), a severe global warming event that occurred 55 million years ago.

Terminations I through V are significant paleoclimate events where the termination of the glacial state occurs, and Earth begins to change into a warm interglacial state.

In the spring and summer, you may witness local outdoor events and lively activities that only occur during the warmer months of the year.

If proxy data can confirm that sea ice was indeed the major player in past abrupt climate - change events, it seems less likely that such dramatic abrupt changes will occur due to global warming, when extensive sea - ice cover will not be present.

It is also valid to say this particular warming event is occurring in a world where the forcing has been increased by human activity and «all» weather is now occurring on this new forcing path which is warming biased.

Taking your 75 % number as an example, I think they understand something like this: «75 % of the strength of this extreme event is attributable to global warming», or «There's 75 % chance that this event would not have occurred without global warming».

At least 4 transient global warming events related to massive carbon input occurred through the late Paleocene — early Eocene, apparently paced by orbital cycles within the Milankovitch band (Lourenset al., 2005; Galeotti et al., 2010).

They do in fact seem to be saying something analogous to your strawman example of «There's 75 % chance that this event would not have occurred without global warming», to wit:

All weather events are affected by climate change because the environment in which they occur is warmer and moister than it used to be»

«Indeed [greenhouse gas - driven] warming is not dominant, but I suspect when all the evidence is in we will find that the event likely would not have occurred without global warming, the odds will be so low,» he said.»

While it is true that any one particular storm or weather event can not be attributed to climate change alone, unusual rain such as this is precisely the type of «global weirding» that climate scientists have predicted would occur as the climate warmed.

But given what I understand to be true, that greater warming has occured than in the distant past than is currently occurring, how can we be so sure we are examining all the right 20th century events, since these earlier warmings were clearly caused by events other than human driven carbon dioxide emissions?

This is what happens in our model events pictured above: during cold phases in Greenland, oceanic convection only occurs in latitudes well south of Greenland, but during a DO event convection shifts into the Greenland - Norwegian seas and warm and saline Atlantic waters push northward.

1) Previous «Natural Events» occurrd 2) Warming event is occurring now 3) therefore, todays trend is natual (even though we put in a new variable not seen in 4.6 billion years)

The current warming the Earth has experienced can not be called cyclical, since the climate increasing its temperature at an exponential rate with no signs of cooling on the horizon (unless the unlikely event of the shutdown of the North Atlantic conveyor system occurs).

The explanation is global warming and climate changes are now occurring 200 times faster than during the much slower, Pleistocene interglacial warming events.

First, they could argue that certain events, even if they are normal catastrophic events, would not have occurred without global warming, they may seek government reimbursement.

The reality of global warming is that events such as the Russian heat wave occur more frequently.

The second point is that we have found distinctive variations in global warming with El Niño: a mini global warming, in the sense of a global temperature increase, occurs in the latter stages of an El Niño event, as heat comes out of the ocean and warms the atmosphere.

The flooding is not necessarily due to global warming, but such events are predicted to occur because of it.

So with the compounding events of warming and extinction occuring before our very eyes, why will the skeptics rather not err on the side of caution?

While some of these events might have occurred without the observed climatic warming, it's pretty likely that not all of them would.

These events were not predicted to occur in the context of our current 1C warming.

Man's role in the extinction of the wooly mammoth and other megafaunal species of the last ice age is smaller compared with the effects of rapid climate - warming events that occurred during the era.

But as illustrated in Figure 20, the warming that occurs during La Niña events is not counteracted by the cooling during El Niño events.

For example, transitions between glacial and interglacial periods are among the most rapid warming / cooling events in the paleoclimate record, and occur over several thousand years.

How can you say ahead of time which weather events will or won't occur under a baseline or warming scenario?