Sentences with phrase «documented atmospheric changes»

Not exact matches

Natural factors contributing to past climate change are well documented and include changes in atmospheric chemistry, ocean circulation patterns, solar radiation intensity, snow and ice cover, Earth's orbital cycle around the sun, continental position, and volcanic eruptions.

Thousands of studies conducted by researchers around the world have documented changes in surface, atmospheric, and oceanic temperatures; melting glaciers; diminishing snow cover; shrinking sea ice; rising sea levels; ocean acidification; and increasing atmospheric water vapor.

Documenting the passage of time, David Claerbout's drawings for a film examine the slow decay of a thousand years brought upon by natural elements, while Peter Liversidge's Polaroid diptychs focus on subtle atmospheric changes evoked in only a matter of minutes.

Although Holocene climate events are relatively minor on a glacial / interglacial perspective, the small Holocene changes in the polar vortex and atmospheric storminess documented by O'Brien et al. (1995) would probably cause widespread disruption to human society if they were to occur in the future (Keigwin and Boyle 2000:1343).»

But the newly obtained documents show that Dr. Carlin's highly skeptical views on global warming, which have been known for more than a decade within the small unit where he works, have been repeatedly challenged by scientists inside and outside the E.P.A.; that he holds a doctorate in economics, not in atmospheric science or climatology; that he has never been assigned to work on climate change; and that his comments on the endangerment finding were a product of rushed and at times shoddy scholarship, as he acknowledged Thursday in an interview.

«Trends in observed atmospheric water vapour are hampered by inhomogeneities in data records, which occur when measurement programmes are discontinued because of, for example, the limited lifespans of satellite missions or insufficiently documented or understood changes in instrumentation.

This section documents regional changes and slow fluctuations in atmospheric circulation over past decades, and demonstrates that these are consistent with large - scale changes in other variables, especially temperature and precipitation.

Among other things, it cites a 1979 internal Exxon document that discusses academic research around possible changes in the climate once atmospheric concentrations of carbon dioxide reach about 500 parts per million.

With these trends in ice cover and sea level only expected to continue and likely worsen if atmospheric carbon dioxide levels continue to rise, they could alter the stresses and forces fighting for balance in the ground under our feet — changes that are well - documented in studies of past climate change, but which are just beginning to be studied as possible consequences of the current state of global warming.

Thousands of studies conducted by researchers around the world have documented changes in surface, atmospheric, and oceanic temperatures; melting glaciers; diminishing snow cover; shrinking sea ice; rising sea levels; ocean acidification; and increasing atmospheric water vapor.

It is simply ludicrous to pretend that the amounts of CO2 emitted by human activity are insignificant: the rise in atmospheric CO2 has been copiously documented, and is known to be caused by human activity: fossil fuel use, deforestation and land use change.

This is consistent with a longer growing season and with documented changes in the seasonal variation in atmospheric CO2 concentrations as reported in the TAR.