Climate sensitivity constrained by C[O.sub.2] concentrations over the past 420 million years

Article Abstract:

The long-term equilibrium climate sensitivity is estimated by modelling carbon dioxide concentrations over the past 420 million years and comparing the calculations with a proxy record. From the results it is concluded that climate sensitivity greater than 1.5 degree Celsius has probably been a robust feature of the Earth's climate system over the past 420 million years regardless of temporal scaling.

Atmospheric carbon dioxide, Climate sensitivity

---

Carbon loss by deciduous trees in a CO(sub)2-rich ancient polar environment

Article Abstract:

Research demonstrates that the quantity of carbon lost annualy by shedding a deciduous canopy is much greater than that lost by evergreen trees, regardless of the growth carbon dioxide concentration. Data indicate that the loss is due to winter time respiration and leaf fall. The deciduous nature of the mature forests persists in regions of long polar winter.

United Kingdom, Physiological aspects, Behavior, Influence, Carbon, Polar regions, Deciduous forests

---

Forest frozen in time

Article Abstract:

The survey results of an extraordinary occurrence of a catastrophically buried forest below sea level found on the roofs of tunnels and chambers of a coal mine in Vermillion County, Illinois is reported.

Illinois, Plants, Fossil, Fossil plants

Similar abstracts:

• Abstracts: A late Eemian aridity pulse in central Europe during the last glacial inception. Stabilizing feedbacks in glacier-bed erosion
• Abstracts: Negative Poisson's ratios as a common feature of cubic metals. Super-tough carbon-nanotube fibres
• Abstracts: Cyclotron frequency shifts arising from polarization forces. The magnetic field of an isolated neutron star from X-ray cyclotron absorption lines

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.