devastated communities, and altered the course of human history. From the overwhelming force of storm surges and the destructive power of major disasters like volcanic eruptions and heat waves to the tragic toll of the Haiti earthquake and the relentless advance of tropical...
When very large stars die, they create temperatures so high that protons begin to fuse in all sorts of exotic combinations,to form all the elements of the periodic table. If, like me, you're wearing a gold ring,it was forged in a supernova explosion. So now the universe is chemically ...
A revised multiproxy marine temperature record from middle Paleocene to middle Eocene, Southwest Pacific Ocean. Paleo-calibration of GDGT-based SST proxies supports use of TEX86L for southern high-latitude Paleogene records. Peak sea surface temperatures (SSTs) during the PETM and EECO of 25–28...
Hemispheric and global means of land and ocean temperatures derived from HadCRUT5 instrumental analysis1 are also shown in each respective panel from 1850-2020 (red). Instrumental temperatures were also referenced to zero mean in the 1850–1900 interval and filtered with a 20-year lowpass filter...
Video 1: The History of Our World First, a video. Yes, it is a scrambled egg. But as you look at it, I hope you'll begin to feel just slightly uneasy. Because you may notice that what's actually happening is that the egg is unscrambling itself. ...
Because most corals live close to their upper temperature limits, a temperature increase of only 2° Celsius (4° Fahrenheit) above the long-term average can trigger mass bleaching, particularly when prolonged. This was demonstrated in 1997-1998, when anomalously high ocean temperatures worldwide –...
The temperature and salinity histories of the oceans are major environmental variables relevant to the course of microbial evolution in the Precambrian, the "age of microbes". Oxygen isotope data for early diagenetic cherts indicate surface temperatures on the order of 55–85 °C throughout the Arc...
3–2 Ma)16,20,21,22, in agreement with the time when global temperatures decreased sharply18. However, molecular phylogenetic analyses indicate that the ancestors of some Arctic lineages originated in the mid- to late Miocene13,23,24,25, though these evolutionary studies have mostly been ...
the highest iodine emission periods during the LGC were preceded by the highest air temperatures that would have first enhanced SST and ocean biological activity and later favoured the transfer of volatile iodine compounds from the ocean to the atmosphere. Together with the efficiency of iodine to ...
Record-warm temperatures were seen across parts of Scandinavia, Asia, the Indian Ocean, the central and westem Pacific Ocean, the Atlantic Ocean, and Central and South America, " scientists said. "No land or ocean areas had record-cold January temperatures. "NOAA also noted that polar(极地) ...