Sentences with phrase «deforestation changing the albedo»

Not exact matches

The rise of CO2 from 270ppm to now over 400ppm, the extent of equatorial and sub tropical deforestation, the soot deposits on the polar ice caps, the increase in atmospheric water vapour due to a corresponding increase in ocean temps and changes in ocean currents, the extreme ice albedo currently happening in the arctic etc, etc are all conspiring in tandem to alter the climate as we know it.

Forcing from surface albedo changes due to land use change is expected to be negative globally (Sections 2.5.3, 7.3.3 and 9.3.3.3) although tropical deforestation could increase evaporation and warm the climate (Section 2.5.5), counteracting cooling from albedo change.

E.g., human - caused albedo variations from desertification, and to some extent tropical deforestation, were connected with past global climate changes by Sagan et al. (1979); a pioneering model confirming «the long - held idea that the surface vegetation... is an important factor in the Earth's climate» was Shukla and Mintz (1982); Amazon Basin: Salati and Vose (1984); more recently, see Kutzbach et al. (1996).

Change a single decimal point on one of the hundreds of interrelated ecological or economic inputs — faster - than - expected emissions from China, melting tundra, diminished albedo, slower rates of deforestation, faster economic growth — and voila!

Land cover changes, largely due to net deforestation, have increased the surface albedo giving an RF of — 0.2 [± 0.2] W m — 2, with a medium - low level of scientific understanding.

I think (without knowing so) that the other impacts of deforestation — like carbon cycle, water cycle and albedo changes — tend to make direct effects on winds virtually insignificant.

If the first order human climate forcings (e.g., agriculture & deforestation changes in methane emissions, albedo, and aerosols) other than CO2 emissions are positive and the same order of magnitude as CO2, then the CO2 sensitivity must be lower.

The proposed explanation (see article: Evidence mounts that Maya did themselves in through deforestation) based on a slight change in albedo after deforestation and a corresponding decrease in solar energy available for convection does not make sense to us (although as we understand this work has not yet been published so we could not read it in detail).