Not exact matches
«The idea is that sudden
changes could arise when threshold conditions are met — for example, a tipping point arises whereby a large amount of ice is released
suddenly into global
oceans.
Climate
change and increasing
ocean temperatures are the main reasons why the pacific oyster
suddenly thrives in areas where it used to be too cold; The oyster is picky about temperature in most of its life stages.
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.
It gets even more confusing when Elizabeth
suddenly takes off her battle armor,
changes into a nightie, walks to the top of a cliff and lets the
ocean surf spray all over her.
When Dory
suddenly remembers that she has a family out there who may be looking for her, the trio takes off on a life -
changing adventure across the
ocean to California's prestigious Marine Life Institute, a rehabilitation center and aquarium.
Have to say that's a pretty abrupt
change in scenery, going down about ten steps and
suddenly ending up in the middle of the
ocean.
First transmitted on Channel Four / Equinox, December 2001 How
changes to the world's forests and
oceans could trigger a rapid acceleration of global warming 55 million years ago, something strange happened to life on Earth: many animals
suddenly shrank, with horses becoming the size of modern domestic cats.
Well that sounds like a pretty dramatic
change to the
oceans if they're
suddenly upwelling enough additional calcium carbonate by sheer coincidence to exactly balance the addition of so many tons of CO2E that it boggles the average reader's mind to comprehend it.
If the thermometers are understating La Nina and EL Nino effects, because the satellites almost always show lower GMT for La Nina events and higher GMT for El Nino events, how can the thermometers
suddenly not exist when it's the rest of the
oceans driving the
change in direction of the GMT?
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).