It's interesting to think that a
matter of a few degrees can affect how the finished product will turn out, but that's chemistry for ya.
A regional climate model study examines the influence of warm ocean surface temperatures in the eastern tropical Atlantic in summer to see what an
increase of a few degrees Celsius does to rainfall.
Such sea level rise suggests that parts of East Antarctica must be vulnerable to eventual melting with global temperature increase
of a few degrees Celsius.
The one thing that stands out for me in the Hansen projections is the [snip] claim that current temperatures are in the same
range of a few degrees as the altithermal and Eemian periods.
If you live somewhere temperate, you might even welcome a rise
of a few degrees as offering more opportunity for picnics, barbecues and relaxed afternoons in pub gardens.
Ice does not conduct heat well, and a rise
of a few degrees in the air would take thousands of years to affect a glacier base a mile away, where it could lubricate the flow.
Using a scanning tunneling microscope, scientists observed nanoscale peaks and dips on a sheet of copper, with
angles of a few degrees, researchers report in the July 28 Science.
So, in other words it is impossible for the global average temperature
fluctuations of a few degrees to have any effect whatsoever upon things going on hundreds of miles below the surface of the Earth where heat is flowing outward.
They can not form with a higher Tropospheric wind shear that results from the slightest expansion of the upper atmosphere post
heating of a few degrees.
On a regional basis, past fluctuations of temperature have been on the
order of a few degrees, and when these have occurred over extended periods, the environmental and societal impacts have been very large.
However, including other greenhouse gases and taking into account a «thermal shrinking» of the upper atmosphere result in a cooling
of a few degrees per decade.
Such sea level rise suggests that parts of East Antarctica must be vulnerable to eventual melting with global temperature
increase of a few degrees Celsius.
The further you move from the equator, though, these gains are eroded; and the team's modelling predicts that planting more trees in mid - and high - latitude locations could lead to a net warming
of a few degrees by the year 2100.
A useful gauge of the impact of a
change of a few degrees in global mean temperature can be found in Tom Crowley's article on paleoclimate in this issue of CONSEQUENCES.
24 2020s 2050s 2080s Initially increased agricultural productivity in some mid-latitude regions & reduction in the tropics and sub-tropics even with warming of a few degrees
If variations in the output of the Sun are indeed limited to the tenth of a percent that is recorded in direct measurements, future solar changes will likely have but a small effect, one way or the other, on the surface warming
of a few degrees that is expected to result from doubled concentrations of greenhouse gases.