Sentences with phrase «past warm episodes»

So even though past warm episodes may have been initiated by orbital changes that caused warming and thus caused CO2 to rise, which then led to more warming, we know that the current warm episode is being driven by increasing CO2 due to the burning of fossil fuels and the clearing of forests.

The authors write that their observation that the modern collapse of the LIS - B is a unique event supports the hypothesis that the current warming trend in the northwestern Weddell Sea is longer and bigger than past warm episodes.

«That's the sort of thing you can understand from studying past warm episodes,» Ford says.

What evidence from past warming episodes establises that this is unique to the current warming.

Not exact matches

Even though the actual rate of global warming far exceeds that of any previous episodes in the past 14,000 years, large changes in global climate have occurred periodically throughout Earth's history.

Zeebe uses past climate episodes as analogs for the future, which suggest that so - called slow climate «feedbacks» can boost climate sensitivity and amplify warming.

A new study has found that Great Barrier Reef (GBR) corals were able to survive past bleaching events because they were exposed to a pattern of gradually warming waters in the lead up to each episode.

«The emissions that caused this past episode of global warming probably lasted 10,000 years.

[Response: And note that the abstract linked says «Although the rarity of the current episode of high average sunspot numbers may indicate that the Sun has contributed to the unusual climate change during the twentieth century, we point out that solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades.»

One of the really troubling long - term aspects of oceanic warming is the possibility of anoxic oceans, which have occurred in the deep past during «hothouse Earth» episodes.

I would like to read a book about how the rate and degree of warming expected to take place over the next couple centuries compares with global warming episodes in Earth's past, and how today's plants and animals might not survive climate change and heat waves more severe than experienced during the climates in which their species evolved.

The team's findings, published in Nature journal Scientific Reports, confirmed the connection in past climate warming, the Pacific Ocean's temperature shifts and long episodes of drought in California.

The recent La Nina episode combined with a quiet sun has almost wiped out the warming observed over the past 20 years in a period of less than 2 years.

There have been very good studies associating past increases in CO2 (most likely from large increases in vulcanism) with past episodes of extreme global warming (like those extreme warming episodes that are now believed to have initiated the creation of the oil and gas deposits we extract and burn today)..

... In light of their recent findings, Davies et al. say there is «little support for the existence of a «permanent El Niño»... that there was robust ENSO variability in past «greenhouse» episodes and that future warming will be unlikely to promote a permanent El Niño state,» which point they also emphasize in the final sentence of their abstract, where they say that their evidence for robust Late Cretaceous ENSO variability «does not support the theory of a «permanent El Niño,»» [Andrew Davies, Alan E.S. Kemp, Graham P. Weedon, John A. Barron 2012: Geology]

In the distant past, warming episodes appear to have been initiated by cyclical changes in Earth's orbit around the Sun that caused more... Continue reading →

In the distant past, warming episodes appear to have been initiated by cyclical changes in Earth's orbit around the Sun that caused more summer sunlight to fall in the northern hemisphere.

The American Southwest has experienced a series of severe droughts interspersed with strong wet episodes over the past decades, prompting questions about future climate patterns and potential intensification of weather disruptions under warming conditions.

However, Solanki et al made the same point as we do: «This comparison shows without requiring any recourse to modeling that since roughly 1970 the solar influence on climate (through the channels considered here) can not have been dominant» (Solanki et al., 2003), and: «Although the rarity of the current episode of high average sunspot numbers may indicate that the Sun has contributed to the unusual climate change during the twentieth century, we point out that solar variability is unlikely to have been the dominant cause of the strong warming during the past three decades.»

It is seen by eye that the smoothed curve captures the main episodes of warming and cooling in the past 162 y that are present in the raw data as it agrees with the simple running mean.

On the volcanoes question, they * can * release massive amounts of CO2 — it's thought that ultra-huge volcanic eruptions in the past have been responsible for unleashing warming episodes via CO2 release.

Richard is particularly interested in understanding how the marine biosphere and key organism traits, such as body size, responded to the major climatic and environmental changes of the past, particularly those associated with the key extinction and warming episodes of the Phanerozoic.

Past episodes in the earth's history, especially one that occurred about 55 million years ago, featured drastic warming accompanied by sea - level rise and other events that would be calamitous for today's civilization.