Sentences with phrase «during early climate»

Complexity theory (formerly called chaos theory) was developed in large part due to discoveries made during early climate modeling efforts.

Not exact matches

Using the Great Barrier Reef as their study case, they estimated the evolution of the region over the last 14,000 years and showed that (1) high sediment loads from catchments erosion prevented coral growth during the early phase of sea level rise and favoured deep offshore sediment deposition; (2) how the fine balance between climate, sea level, and margin physiography enabled coral reefs to thrive under limited shelf sedimentation rates at 6,000 years before present; and, (3) how over the last 3,000 years, the decrease of accommodation space led to the lateral extension of coral reefs consistent with available observational data.

In the Department of Meteorology at Stockholm University (MISU), researchers have done a series of model simulations investigating tropical cyclone activity during an earlier warm climate, the mid-Holocene, 6,000 years ago.

A study published yesterday in Nature Climate Change showed that early exposure to high levels of CO2 during the larval stage of development had significant negative effects on the fish's size, metabolism and ability to sense threats in their environment.

Rapid climate change during the Middle Stone Age, between 80,000 and 40,000 years ago, during the Middle Stone Age, sparked surges in cultural innovation in early modern human populations, according to new research.

Pollen data show that during earlier interglacial periods, when the climate was most similar to now, forest compositions were very different from today.

After spending a relatively leisurely winter and early spring luxuriating in warm tropical climates, they migrate north for a brief but highly eventful summer in North America, during which they must complete three energetically demanding and time - consuming tasks: (1) they must build nests, lay eggs, and provide for their offspring until the young reach independence, (2) they must completely replace all the feathers in their plumage as part of the annual molt, and (3) they must prepare for the fall southward migration by eating prodigiously and storing the body fat that will fuel their long - distance flights.

The findings, which were announced during the 2018 AAAS Annual Meeting in Austin, Texas, have implications for understanding the region's history of migration, land use and conservation and even early climate changes, participants said.

«This finding,» says Zhang, «provides important insights into patterns of oceanic environmental change and their underlying causes, which were ultimately linked to intense climate warming during the Early Triassic.»

Precipitation anomalies have been stronger and covered larger areas in some earlier centuries than during the twentieth century,» according to Fredrik Charpentier Ljungqvist, historian and climate researcher at Stockholm University and lead author of this study.

The researchers found that the fog layer is an essential regulator of the Amazon climate: during the wet season, it artificially modifies the duration of daytime because it reflects sunlight during the early morning.

That information is important groundwork for the Department of Defense (DOD) as it prepares for climate change, said John Conger, who served at DOD during the Obama administration and directed the early stages of the report.

According to NOAA's Climate Prediction Center, El Niño is expected to remain strong through the Northern Hemisphere winter 2015/16, and transition to ENSO - neutral conditions during late spring or early summer 2016.

According to NOAA's Climate Prediction Center, as of early January 2016, the strong El Niño is expected to gradually weaken through spring 2016 and to transition to ENSO - neutral during late spring or early summer.

Beetles gained similar strength in the Rockies during mild winters in the late»90s and early 2000s, killing not only their usual victims but also entire hillsides of ancient whitebark pines, which live at altitudes once too frigid to support the insects.A beautifully concise explanation of what has happened in a large portion of the West, thanks in part to climate change.

Given that the long - term trend in early spring snowpack is down, Climate Central recently examined how the type of precipitation is changing during the winter months nationwide.

Early humans survived a massive volcanic eruption 74,000 years ago as well as flourished during the resulting climate change, finds a new study.

For example, counselors can post behavioral data, signaling that as expectations have been communicated more consistently during the early days of the semester, the school climate has improved.

- Peru's climate varies depending on when and where you visit - On the coast it is usually quite hot although during the winter (April to August) it can get chilly early in the morning and at night.

Some itineraries may have early morning start times for sightseeing in order to complete the touring during daylight hours or avoid afternoon heat in tropical and desert climates.

The city enjoys a typical tropical climate, with daytime temperatures of about 30 degrees for most of the year, falling to around 25 degrees during the monsoon season (from May to early September).

Secondly, the argument that the climate should have naturally «rebounded» with warming during the 20th century defies the actual peer - reviewed scientific studies which, as discussed earlier, suggest that the climate should have actually cooled during the 20th century, not warmed, if natural factors were primarily at play.

This was during my early days of climate blogging, and I assumed that it was so obviously wrong, that one would simply need to point this out and anyone with any experience of data analysis (or even basic algebra / mathematics) would accept that the graph was wrong and misleading.

«Our investigation found that during the fall of 2004 through early 2006, the NASA Headquarters Office of Public Affairs managed the topic of climate change in a manner that reduced, marginalized, or mischaracterized climate change science made available to the general public through those particular media over which the Office of Public Affairs had control (i.e., news releases and media access).

Reliable knowledge of possible secular changes in TSI during these earlier eras is therefore important for establishing climate sensitivity to natural influences in the absence of larger anthropogenic effects.»

Given the total irrelevance of volcanic aerosols during the period in question, the only very modest effect of fossil fuel emissions and the many inconsistencies governing the data pertaining to solar irradiance, it seems clear that climate science has no meaningful explanation for the considerable warming trend we see in the earlier part of the 20th century — and if that's the case, then there is no reason to assume that the warming we see in the latter part of that century could not also be due to either some as yet unknown natural force, or perhaps simply random drift.

Actually, there is some interesting work being done by Matt Huber of Purdue, following up on some earlier ideas of Emanuel's, suggesting that the role of TCs in transporting heat from equator towards the poles may be more significant than previously thought — it also allows for some interesting, though admittedly somewhat exotic, mechanisms for explaining the «cool tropics paradox» and «equable climate problem» of the early Paleogene and Cretaceous periods, i.e. the problem of how to make the higher latitudes warm without warming the tropics much, something that appears to have happened during some past warm epochs in Earth's history.

The kind of framing used by McKibben in the Daily Beast also came up during the astounding tornado outbreaks earlier this year, as Michael Mann of Pennsylvania State University told ThinkProgress that «climate change is present in every single meteorological event.»

Rick Piltz, a gutsy whistleblower who revealed a pattern of politically torqued rewriting of climate science reports during the first term of President George W. Bush, died early Saturday morning after a fight with cancer.

1 - A review of the research literature concerning the environmental consequences of increased levels of atmospheric carbon dioxide leads to the conclusion that increases during the 20th and early 21st centuries have produced no deleterious effects upon Earth's weather and climate.

Human - induced forcing exhibited a slow rise during the early part of the last century but then accelerated after 1960.2 Thus, these graphs highlight observed changes in climate during the period of rapid increase in human - caused forcing and also reveal how well climate models simulate these observed changes.

-LSB-...] After 300 years of global warming, during nearly all of which we could not on any view have influenced the climate to a measurable degree, it is scarcely surprising that recent decades will be warmer than earlier decades.

For instance, during the last, nearly two decades the climate has no more been warming, even though the CO2 content in atmosphere has been increasing like earlier.

During this time, she also managed a multi-year project in the Pacific Islands to strengthen climate early warning systems for marine, inundation and drought events that impact food and water security in partnership with national Meteorological Services Offices.

The Climate Council report states that since the mid-1990s, south - east Australia has experienced a 15 % drop in rainfall during late autumn and early winter, with a 25 % slump in average rainfall in April and May.

For instance, extreme weather events occurred with about the same frequency during the 1945 - 77 global cooling period as they do today, yet no climate scientist pointed to human activity as being responsible in the earlier period.

During a scorching, record - breaking heatwave earlier this year, the now Deputy Prime Minister Warren Truss ridiculed the notion that heat waves and bushfires could be linked to human - caused climate change.

In one method, a statistical analysis of observational records was performed (using the KNMI Climate Explorer) to compare this summer's heat with summers during the early part of the century, before global warming played a significant role in our cClimate Explorer) to compare this summer's heat with summers during the early part of the century, before global warming played a significant role in our climateclimate.

Early studies by geologists and glaciologists attempted to find a climate mechanism to explain the evidence of massive ice sheets during the recent Ice Age.

The IPCC states that prior to 1950 any global warming was due to natural forces - thus, the +0.41 °C decadal increase during the early 20th century was due entirely to natural climate forces.

It is instructive to compare these numbers with those characteristic of a set of the years during 1979 — 2012 with no or only one major regional extreme event (in terms of land surface temperature and land precipitation anomalies) in the NH midlatitudes, from late April / early May to late September / early October, as reported yearly since 1993 in the World Meteorological Organization statements on the status of the global climate (see also ref.

Persistent influence of ice sheet melting on high northern latitude climate during the early Last Interglacial.

December 5, 2014, Lima, Peru: Technical negotiations during the first week of the climate talks in Lima (COP20) have mostly gone smoothly, but important negotiating - team level discussions on a handful of key issues need to conclude this week so that there is wide agreement on the range of options facing the Ministers as they arrive early next week to pick up the high - level negotiations.

The rest of the world learned its lesson during the early years of the United Nations Framework Convention on Climate Change, when the U.S. first helped shape, but then failed to ratify, the 1997 Kyoto Protocol: American inaction is no excuse for global dithering.

During my earliest research into the climate debate, certain discoveries left a lasting impression.

The Bureau of Meteorology (BOM) earlier today released a «Special Climate Statement» on the «unseasonal hot conditions which affected large parts of Australia during April 2018».

Again their models failed to account for the heat during Arctic's earlier natural warming (black line), a warming climate scientists called «the most spectacular event of the century».

162 Climate pumping along Silk Road route to China: Adam Chou, «Migration of early hominids during the Pleistocene,» Journal of Human Evolution 40 (3): A5 (March 2001).

There is ample circumstantial evidence that it has a significant impact, such as the Little Ice Age that occurred during the last grand minimum, as well as the unusually cold climates that also matched past weak cycles, now, and also in the early 19th and 20th centuries.

If the climate continues to warm in the Arctic, as is predicted, it is likely that rain will be more widespread during early spring.