Sentences with phrase «global cooling phase»

The IPCC compared the recent global warming rate with global warming rate for a longer period that has a combination this recent warming and previous global cooling phase and declared to the world «accelerated warming.»

Atmospheric surface temps have been used and marketed since the end of the last global cooling phase from 1945 - 1976 and explicitly through the 1990 ′ s as the definitive measure of «theorised» human - induced (anthropogenic) global warming.

We say purported, because our existence is taking place during a global cooling phase (look at chart closely and note the pale blue areas) which is rather long - in - the - tooth, and at some point would normally rebound to warmer temperatures, just naturally.

One region of the world that may already be experiencing the impacts of a global cooling phase is The Midlands of central England.

The empirical evidence continues to build within the climate science community that the world is experiencing some type of global cooling phase as a result of natural climate change forces.

And ithere is nothing wrong with saying the expected global cooling phase did not start 16 - years ago due to increasing CO2 levels and WMGHG warming.

there is a theory that they become more likely in global cooling phases because of sluggish pressure systems.

Not exact matches

The Pacific Ocean's current cool phase is driving the global warming slowdown — but that countering effect is not going to last, scientists say.

The last couple of years have witnessed a cooling phase for Europe and parts of North America despite the recent overall increase in global temperatures.

This NASA analysis highlights that the recent lull in surface temperatures is simply the result of natural variability superimposed upon the global warming trend - the cool phase of a cool / warm oscillation.

These extended, cool and hence red stars are key targets for stellar evolution studies as well as galactic studies for several reasons: a) many stars go through a red - giant phase; b) red giants are intrinsically bright; c) large stellar internal structure changes as well as changes in surface chemical abundances take place over relatively short time; d) red - giant stars exhibit global intrinsic oscillations.

The PDO has been in a cool phase for the past decade and some research has tied that to the global warming slowdown over that time.

As Parties to Montreal Protocol negotiate a global agreement for an HFC phase - down this year, several safety standards and building codes are threatening to limit the climate ambition and effectiveness of this agreement by blocking the uptake of low global warming potential (GWP), energy efficient alternatives to hydrofluorocarbon (HFC)- based cooling around the world.

In 1975 Wallace Broeker (the guy who first used the phrase «global warming», predicted a rapid transition to warming in the 1980s, caused by a combination of rapidly rising CO2 emissions and a natural temperature cycle (derived from work on Greenland ice cores at Camp Century) which showed a rapid warming phase up to 1940, followed by the cooling phase which was attenuated by CO2.

A couple of years ago, I was caused to do some research on the subject, and discovered that the predictions of global cooling at the time were not really based on science, but on the belief that, given the believed time frames for heating and cooling, «we were overdue for a cooling phase.»

There are two main explanations for the 1940s to 1970s global temperature stagnation (or slight cooling): aerosol forcing and the negative phase of an ocean cycle known as the Atlantic Multi-decadal Oscillation (AMO), with the former contributing more than the latter.

We have just finished a warming phase, so expect mild global cooling for the next two decades.»

When the PDO last switched to a cool phase, global temperatures were about 0.4 C cooler than currently.

«The global warming in 1970 - 1998 was merely a phase in the 60 - year cycles of natural warming and cooling,» Dr. Bashkirtsev says.

Contrary to what the mainstream press reports and exaggerates about «global warming,» the world has actually been in a stable - to - cooling phase since the El Nino temperature spike of 1997/98.

So, the 2013 global surface average being almost as warm as 1998 while the ENSO is in a slightly cooler than neutral phase indicates that warming has continued.

When that Arctic forcing is SST related, it would be lagged and could be out of phase meaning a global cooling or pause would produce stronger Arctic Winter Warming and stronger more frequent SSW events.

[1] He now subscribes to the global cooling meme, saying on July 14 2008 «Unstoppable warming has gone and a cooling phase has begun that is likely to last 25 to 30 years» [2].

The figure shows global «wind and gyre circulation changes hypothesized to be associated with multidecadal (a) warm and (b) cool phases of the North and South Hemispheres.

Also, the above chart of the 12 - month means clearly shows a climate that moves from cooling to warming phases, and then back - a natural oscillation that «catastrophic global warming» skeptics have long discussed, while being dismissed by the IPCC and its cohorts.

From here to item 20 is simply the reverse (cooling) phase of the same global climate cycle described in items 1 to 10.

To point out just a couple of things: — oceans warming slower (or cooling slower) than lands on long - time trends is absolutely normal, because water is more difficult both to warm or to cool (I mean, we require both a bigger heat flow and more time); at the contrary, I see as a non-sense theory (made by some serrist, but don't know who) that oceans are storing up heat, and that suddenly they will release such heat as a positive feedback: or the water warms than no heat can be considered ad «stored» (we have no phase change inside oceans, so no latent heat) or oceans begin to release heat but in the same time they have to cool (because they are losing heat); so, I don't feel strange that in last years land temperatures for some series (NCDC and GISS) can be heating up while oceans are slightly cooling, but I feel strange that they are heating up so much to reverse global trend from slightly negative / stable to slightly positive; but, in the end, all this is not an evidence that lands» warming is led by UHI (but, this effect, I would not exclude it from having a small part in temperature trends for some regional area, but just small); both because, as writtend, it is normal to have waters warming slower than lands, and because lands» temperatures are often measured in a not so precise way (despite they continue to give us a global uncertainity in TT values which is barely the instrumental's one)-- but, to point out, HadCRU and MSU of last years (I mean always 2002 - 2006) follow much better waters» temperatures trend; — metropolis and larger cities temperature trends actually show an increase in UHI effect, but I think the sites are few, and the covered area is very small worldwide, so the global effect is very poor (but it still can be sensible for regional effects); but I would not run out a small warming trend for airport measurements due mainly to three things: increasing jet planes traffic, enlarging airports (then more buildings and more asphalt — if you follow motor sports, or simply live in a town / city, you will know how easy they get very warmer than air during day, and how much it can slow night - time cooling) and overall having airports nearer to cities (if not becoming an area inside the city after some decade of hurban growth, e.g. Milan - Linate); — I found no point about UHI in towns and villages; you will tell me they are not large cities; but, in comparison with 20-40-60 years ago when they were «countryside», many small towns and villages have become part of larger hurban areas (at least in Europe and Asia) so examining just larger cities would not be enough in my opinion to get a full view of UHI effect (still remembering that it has a small global effect: we can say many matters are due to UHI instead of GW, maybe even that a small part of measured GW is due to UHI, and that GW measurements are not so precise to make us able to make good analisyses and predictions, but not that GW is due to UHI).

US researchers report in the journal Nature that they collected fossil pollens from 642 ponds and lake beds across Europe and North America, to provide a record of local temperature shifts in the last 11,700 years, to conclude that — without global warming as a consequence of profligate human use of fossil fuels — the world ought to be in a cool phase.

This occurred while the Equatorial Pacific was flipped into a cool phase, which tends to lower global temperatures.

«Many climatologists and astrophysicists believe recent sun spot, Pacific Ocean and global temperature trends suggest that our planet may have entered a cool phase that could last for 25 years.

By analyzing a number of time series of phenomena influenced by climate, they found that the earth has global climate cycles of 50 - 70 years with an average of about 60 years and which have cool and warm phases of 30 years each.

They show that increasing world fuel consumption (i.e., increasing CO2 emission) does not correlate with cool and warm phases of the 60 year global climate cycle.

Michaels points satellite data, claiming that «you see it's really not global warming, obviously -LSB-...] In fact, because there is a net statistically significant cooling of the whole record, it almost looks to me, as a scientist, like what's really going on here is the planet has remained in the slight cooling phase that it was in since World War II -LSB-...]» [93]

Global temperatures of the 20th century showed a warming phase to the 1940â s, a cooling phase to the 1970â s and renewed warming to 1998.

Global temperatures have not increased since 1998 suggesting that the effect of a cool phase of the PDO is being felt.

The models heavily relied upon by the Intergovernmental Panel on Climate Change (IPCC) had not projected this multidecadal stasis in «global warming»; nor (until trained ex post facto) the fall in TS from 1940 - 1975; nor 50 years» cooling in Antarctica (Doran et al., 2002) and the Arctic (Soon, 2005); nor the absence of ocean warming since 2003 (Lyman et al., 2006; Gouretski & Koltermann, 2007); nor the onset, duration, or intensity of the Madden - Julian intraseasonal oscillation, the Quasi-Biennial Oscillation in the tropical stratosphere, El Nino / La Nina oscillations, the Atlantic Multidecadal Oscillation, or the Pacific Decadal Oscillation that has recently transited from its warming to its cooling phase (oceanic oscillations which, on their own, may account for all of the observed warmings and coolings over the past half - century: Tsoniset al., 2007); nor the magnitude nor duration of multi-century events such as the Mediaeval Warm Period or the Little Ice Age; nor the cessation since 2000 of the previously - observed growth in atmospheric methane concentration (IPCC, 2007); nor the active 2004 hurricane season; nor the inactive subsequent seasons; nor the UK flooding of 2007 (the Met Office had forecast a summer of prolonged droughts only six weeks previously); nor the solar Grand Maximum of the past 70 years, during which the Sun was more active, for longer, than at almost any similar period in the past 11,400 years (Hathaway, 2004; Solankiet al., 2005); nor the consequent surface «global warming» on Mars, Jupiter, Neptune's largest moon, and even distant Pluto; nor the eerily - continuing 2006 solar minimum; nor the consequent, precipitate decline of ~ 0.8 °C in TS from January 2007 to May 2008 that has canceled out almost all of the observed warming of the 20th century.

Solar forcings is a much better researched phenomenon and the «what if» for that one is that the sun seems to be entering a quiescent phase that will lead to global cooling, so the AGW warming, if any, will be welcome.

Global envoys agreed on Saturday to phase out hydrofluorocarbons from cooling appliances beginning in 2019.

Such alternation of warm and cool phases is characteristic of ENSO and is present in all global temperature curves from their inception.

As the ice sheets waxed and waned, global climate drifted steadily toward cooler conditions characterized by increasingly severe glaciations and increasingly cool interglacial phases.

Girma Orssengo rightly demonstrates that one can not determine climate sensitivity empirically from observed changes in CO2 concentration and in global mean surface temperature unless one either studies periods that are multiples of ~ 60 years to cancel the transient effects of the warming and cooling phases of the Pacific and related ocean oscillations or studies periods centered on a phase - transition in the ocean oscillations.