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originally posted by: Timing
The scientist don't know all the factors, as far as they know it's completely natural.
originally posted by: Timing
It's absurd to be pushing governments to levy taxes and cause more economic hardship for people.
originally posted by: Timing
Now as far as the ice cores goes, if there was a decrease in land ice for that year you wouldn't know it because that data would be non-existent in the ice core data because the ice melted.
originally posted by: Timing
As far as the salinity of the water there is place up around Russia and Alaska where Salt Water and Fresh water meet, but it doesn't blend.
Halocline
In oceanography, a halocline is a subtype of chemocline caused by a strong, vertical salinity gradient within a body of water. Because salinity (in concert with temperature) affects the density of seawater, it can play a role in its vertical stratification. Increasing salinity by one kg/m3 results in an increase of seawater density of around 0.7 kg/m3.
In the midlatitudes, an excess of evaporation over precipitation leads to surface waters being saltier than deep waters. In such regions, the vertical stratification is due to surface waters being warmer than deep waters and the halocline is destabilizing. Such regions may be prone to salt fingering, a process which results in the preferential mixing of salinity.
In certain high latitude regions (such as the Arctic Ocean, Bering Sea, and the Southern Ocean) the surface waters are actually colder than the deep waters and the halocline is responsible for maintaining water column stability- isolating the surface waters from the deep waters. In these regions, the halocline is important in allowing for the formation of sea ice, and limiting the escape of carbon dioxide to the atmosphere. Haloclines are also found in fjords, and poorly mixed estuaries where fresh water is deposited at the ocean surface.
originally posted by: Timing
If it was hot enough two years ago to melt the sea ice and create a "hottest on record" headline, what happened last year that caused the sea ice to form and still be called "hottest on record"?
originally posted by: Kali74
a reply to: beezzer
We don't know everything, that doesn't mean we know nothing. We KNOW certain things about how things work, for climate we know:
Earth gets it's energy from the sun, life as we know it exists because of the sun, climate as we knew it wouldn't have existed without the sun.
Earths orbit, wobble, rotation and tilt cause variations in how much of the earth is in or out of the sun every day/season/cycle. This is typically what causes ice ages and warm periods.
Gasses in our atmosphere affect how much energy we receive, retain and let escape from the sun. Some gases reflect energy not allowing it to Earth's surface, some do nothing and some make that energy bounce back to Earth's surface after Earth has radiated it back outward. Not enough of those gases and it's too cold, too much of those gases and it's too hot (for us, not necessarily for all life).
The sun goes through minimum and maximum cycles... sometimes the sun gives more energy, sometimes less. Though in our history of observing the sun and extrapolating it's history before us, it hasn't fluctuated enough to give us significant change in climate. The sun has been giving us a relatively steady stream of energy, not enough change in it to cause an ice age nor a warming period.
The Earth 'breathes', this is known as the carbon cycle. The norm for Earth's carbon cycle... the norm that allowed life as we know it to crop up has changed and is continuing to change. Data collected from tree rings, ocean sediment and ice cores show that when greenhouse gases are high the planet is warmer, when they are low the planet is colder.
Ocean oscillations also factor into global temperatures but that seems to be relatively short term effects.
Differences in earths orbit, wobble and tilt as well as greenhouse gases are the two major factors of climate change and ocean oscillations for short term effects...it doesn't seem likely that unknown factors exist.
What we don't know and why it remains a subject needing to be studied is sensitivity. We have only estimates for that, we don't know exactly when we'll reach a tipping point only that we will if we don't change our ways... because all those other knowns I listed, it's none of those causing global temperatures to rise.
originally posted by: Kali74
a reply to: beezzer
The Earth 'breathes', this is known as the carbon cycle. The norm for Earth's carbon cycle... the norm that allowed life as we know it to crop up has changed and is continuing to change. Data collected from tree rings, ocean sediment and ice cores show that when greenhouse gases are high the planet is warmer, when they are low the planet is colder.
originally posted by: ParasuvO
Hmm, I would love to see the data on how all this ICE, got on the land in the first place, not THEORIES, but provable data.
But data shows that the rise and fall of CO2 is a reaction to the warming and cooling of the earth, not the cause of it.
originally posted by: Kali74
Not exactly. Greenhouse warming isn't the only way Earth warms. Orbital forcing is another way. Our path around the sun can cause the planet to warm significantly which can cause all sorts of reasons for sequestered carbon and other GHG's to be released, either from mass die offs (decay from deceased organic matter) or from thawing permafrost. So temperature can precede GHG increase but only for a short time, once GHGs reach high enough levels they take over as the dominant forcing of warming.
originally posted by: Kali74
a reply to: Fylgje
Oh you should try going full on and get the coal burners on those badboys too! Nothing says fight the man like smokes stacks blowing black soot all over the place.
originally posted by: Kali74
a reply to: FinalCountdown
More sea ice is due to melt and calving into the sea. Growing sea ice is evidence of warming or volcanic activity under the ice, not cooling.
originally posted by: Benevolent Heretic
Andy Watts is a climate denier. Of course he's going to spin that...
The Video Andy Watts Tried to Ban