But it is also a world for
which ancient climates offer insight — and those insights are not cheery.
Not exact matches
Although the
ancient Yemenite civilization
which found its stimulus in its favorable
climate and trade is no more, the latent human and natural resources of the country are still there and will come to the fore when they have security from foreign invasion and can introduce modernization and democratic rule.
A University of Alaska Fairbanks - led research project has provided the first modern evidence of a landscape - level permafrost carbon feedback, in
which thawing permafrost releases
ancient carbon as
climate - warming greenhouse gases.
Their work,
which links
ancient climate and archaeological data, could help modern communities identify new crops and other adaptive strategies when threatened by drought, extreme weather and other environmental challenges.
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.
The study,
which appears in Nature Geoscience, found that
climate models explain only about half of the heating that occurred during a well - documented period of rapid global warming in Earth's
ancient past.
For this reason, the PETM,
which has been identified in hundreds of sediment core samples worldwide, is probably the best
ancient climate analogue for present - day Earth.
In Mongolia, U.S. scientists are studying
climate clues in
ancient tree rings to help answer a crucial question: How will global warming affect Asia's monsoon rains,
which supply water for agriculture and drinking to half the world's population?
«
Climate information recovered from these
ancient sources mainly refers to extreme events
which impacted wider society, such as droughts and floods,» study researcher Fernando Domínguez - Castro of the University of Extremadura in Spain said in a statement.
She had the space to do so, but instead hypothesized that science (and presumably
climate science) bases its approach to statistical testing in the long shadow of its
ancient historical ties to religion,
which is something she may well be able to offer an opinion about, as an historian, but
which has minimal relevance to policy makers or the interested public in interpreting scientific claims as found, say, in the IPCC reports.
Unfortunately, they conveniently ignore (or are unaware) the empirical evidence that
climate change is a constant,
which has produced
ancient and geological era extremes in weather and temperatures - extremes that science has confirmed with a cornucopia of peer - reviewed research.
According to Lynas, the six - degree world can be considered only with the aid of pale -
climate «analogues» —
ancient worlds in
which conditions were far, far warmer than anything known today.
The same is true of the Fertile Crescent (
which was, at one point, actually fertile), the Indus Valley, and everywhere else where
ancient civilizations once rose and then collapsed as a result of local
climate changes, poor soil management, overpopulation, or what have you.
Raypierre's
climate book in Chapter 5 gives a good overview of scattering, particularly Rayleigh and Mie scattering
which help explain things why aerosols scatter light, why the sky appears blue, why CO2 clouds (say on
ancient Mars) can scatter infrared radiation good but water clouds on Earth don't have that effect, etc..