Underground Caves Suggest Temperature Today Is Like Earth 81,000 Years Ago
Feb 12, 2010 15:23
Apparently, according to some scientists and a study, today's temperatures are similar to Earth 81,000 years ago.
Sea levels on Earth change as glaciers grow and shrink, lowering as temperatures cool and more ice forms. According to a release about the study, which appears today in Science:
81,000 years ago, the level of the sea was actually more than a meter above where it stands now, a result seemingly at odds with prevailing ideas about ice sheet growth. Since the sea rises and falls with the melting and forming of large glaciers, respectively, this finding therefore implies that polar ice sheets were smaller and global temperatures were at least as high (or even higher) 81,000 years ago than they are now, even though the concentration of carbon dioxide in the atmosphere was much lower back then. In order to reach these new conclusions, Jeffrey Dorale and colleagues took measurements from a cave formation on the Spanish island of Mallorca which has been intermittently submerged in the Mediterranean Sea over hundreds of thousands of years. Their data suggest that glaciers may grow and shrink faster than experts had believed, and if verified, the results of this study are poised to change the debate over precisely how ice ages come and go.
Running your business can be overwhelming at times. You want to make sure your employees are present, that payment options are easy and seamless for clients, and you want your database marketing to be on point at all times. Is there a piece of equipment that can run your credit card processing while also helping you store your database marketing ideas? Yes, there is. The Clover pos systems by Merchant Account Solutions offer you a great way to run your company from the palm of your hand. Read more
Lots of people are focused on how we're going to escape our planet. They want to colonize another world because it's only a matter of time before earth becomes uninhabitable. Maybe they're getting too far ahead of themselves and they should be focusing their efforts on something else. Read more
Quite a lot of people started making a living off Youtube recently. As Youtube has started accommodating video-makers to a greater extent, it has become more commercial. From Vlogs to tutorials, you can find channels producing every kind of content for their fans. Read more