's excellent Climate Change
section, excellent summation of the year's research into anthropogenic climate change -- that is, the hard scientific evidence from unbiased, independent scientists indicating that climate change is real, caused by humans, and dangerous to the planet.
4. The hockey stick holds up
What we've learned in 2008
A follow-up to the infamous 1998 'hockey stick' curve confirmed that the past two decades are the warmest in recent history. Climatologist Michael Mann's contentious graph has become a symbol of the fierce debates on evidence for global warming, to the extent that an independent investigation into the study was performed at the request of US Congressman Joe Barton. The 2006 report that resulted from the Barton enquiry criticized Mann and colleagues for their reliance on tree-ring data from bristlecone pines as a proxy to reconstruct Northern Hemisphere temperatures over the past 1,000 years. Although their earlier work had been largely vindicated, in September the same team revised their global surface temperature estimates for the past 2,000 years, using a greatly expanded set of proxies, including marine sediments, ice cores, coral and historical documents (Proc. Natl Acad. Sci. USA 105, 13252–13257; 2008). The team reconstructed global temperatures with and without inclusion of the tree-ring records: without their inclusion, the data showed that recent warming is greater than at any point in at least the past 1,300 years; inclusion of tree-ring data extended this period to at least 1,700 years. According to the Christian Science Monitor: "It still looks a lot like the much-battered, but still rink-ready stick of 1998. Today the handle reaches further back and it's a bit more gnarly. But the blade at the business end tells the same story."
Landru79 created this spectacular GIF from images captured in 2016 on the surface of Comet 67P/Churyumov–Gerasimenko by the European Space Agency lander Philae deployed by the Rosetta probe. The video is significantly sped up, compressing 25 minutes into a few seconds of intense action. But what exactly are we looking at in this pandemonium? From […]
Using DNA to store digital data has been a classic forecast in infotech futurism for more than two decades. The basic concept is that you could synthesize strands of DNA encoded with digital information and then decode it with DNA sequencing techniques. While several amazing experiments have demonstrated that DNA data storage is possible, it’s […]
A Fata Morgana is a spectacular optical illusion in which you may see boats floating above the sea or city skylines in the clouds. (The term is named after the Arthurian sorceress Morgan le Fay as her castle was said to hover above the coast of Sicily.) In the video below, Seeker explains the science […]
Total versatility isn’t something you’d typically find in a telescope. While magnification tech has come a long way, most telescopes are designed to either gaze upon the stars or view the landscapes beneath them. The Omegon Maksutov Telescope MightyMak 60 lets you do both, and thanks to its compact design, you can easily incorporate some sightseeing into […]
The web is an invaluable tool for connecting small businesses with their target audiences. However, when it comes to building a website and marketing online, the learning curve can be steep if you’re doing it on your own. The WordPress Essentials Lifetime Bundle can help you out by getting you up to speed with the platform […]
Most of us understand that when we visit a website, we’re subjecting ourselves to surveillance by trackers. And, while these tools are usually used for innocuous purposes, like determining which ads to show you, they can be leveraged for much more nefarious goals, and they have the potential to tank your browsing speed as well as […]