over that interval. Judd et al. present a record of GMST over the past 485 million years ...
Some 3 million years ago, during the mid-Pliocene Warm Period, which was characterised by an atmospheric carbon dioxide content similar to modern levels, Greenland experienced ice growth intervals paced by a 41,000-year astronomical cycle. I. M. C. Sousa , C. Hillaire-Marcel & A. M. R....
aFor 2.5 million years, the earth climate has fluctuated, cycling from ice ages to warmer periods. But in the last century, the plant’s temperature has risen unusually fast-about 1.2 to 1.4 degrees Fahrenheit. Scientists believe it’s human’s activity that’s driving the temperature up; a...
This study examines the influence of agricultural irrigation on heat stress and contrasts it against local impacts of urbanization in North American cities using regional climate model simulations. The results indicate that irrigation decreases air temperature and increases relative humidity, with daytime ur...
"Thelast time CO2 levels were this high, the sea level was many feet higher than it is today," added Matthew Lachniet, a climate scientist at the University of Nevada at Las Vegas. This was a warmer geologic period on Earth called the Pliocene, spanning some 2.5 to 5 million years ago...
mean surface temperature288 K (59 °F, 15 °C) number of known moons1 (the Moon) The atmosphere and hydrosphere The blankets of volatilegasesandliquidsnear and above the surface of Earth are, along withsolar energy, of prime importance to thesustenanceof life on Earth. They are distributed...
Abrupt climatic changes occurring before the Pleistocene have also been documented. Atransientthermal maximum has been documented near the Paleocene-Eocene boundary (56 million years ago), and evidence of rapid cooling events are observed near the boundaries between both the Eocene and Oligocene epochs...
In fact, over the past 20 million years, our planet has settled into a pattern of a pole reversal about every 200,000 to 300,000 years, according to the journal Nature. As of 2012, however, it has been more than twice that long since the last reversal. These reversals aren't split-...
The N-S fault system developed as normal system during the Middle Pleistocene in response to abrupt regional tectonic uplift, still active and estimated at 0.8 mm/year (Sorriso-Valvo 1993; Sorriso-Valvo and Sylvester 1993; Westaway 1993) for the last million years, produced a generalized ...
(some 540 million years) to the evolution of the Anthropocene (changes) following the emergence of the first human-culture on the planet some 200 thousand years ago. Here we illustrate the value of this linked research through a number of examples, including: (i) geological field mapping with...