Cartoon – GMO Food Testing
Tag: science
Global Warming: Here and Now
“It has happened,” said Philip Bump. For the first time in human history, atmospheric carbon dioxide levels hit a daily average of 400 parts per million (ppm) last week. “There is now more carbon dioxide in the atmosphere than at any point since 3 million years ago.” Back then, global temperatures were about 7 degrees higher, the Arctic was ice-free, […]
Read moreThe sun takes a rare hiatus
Sunspot activity may be entering a lull for the first time in almost 400 years, offering scientists a rare chance to gauge how solar conditions affect Earth’s climate. “This is highly unusual and unexpected” says Frank Hill, a researcher at the National Solar Observatory. Three new NSO studies suggest that the sun’s fluctuating magnetic field may soon become too weak […]
Read moreDepressed? Blame the heavens
Scientists have long laughed at astrology’s underlying premise—that celestial events can influence human emotions and behavior. But a series of new studies has produced evidence that at least one kind of astronomical event—solar flares—may, in fact, affect human beings. Periodically, the sun erupts with large storms that hurl waves of electromagnetically charged particles into space, altering Earth’s own magnetic field. […]
Read moreScientists Using Alien Molecules To Expand DNA
Scientists have taken the first steps toward writing the blueprint of life in an alphabet unknown to nature, they reported online in the journal Nature. Until now, biologists have used the same base molecules when synthesizing DNA. It has been recently announced that scientists have not only created two new bases, but also inserted them into a single-cell organism and […]
Read moreTremors from fracking
Prague, Okla Tremors from fracking: Scientists have linked Oklahoma’s largest earthquake—a 5.6 magnitude quake near the town of Prague, in 2011—to hydraulic fracturing, supporting claims that the process increases seismic activity. Fracking, as it is known, injects water and chemicals into petroleum deposits in order to extract trapped gas. This week, researchers at the University of Oklahoma, Columbia University, and […]
Read moreThe biggest thing in the universe
British astronomers have identified a celestial object so large that it challenges scientists’ basic assumptions about the nature of the universe. Huge-LQG is a cluster of 73 quasars, each of which lies at the center of its own galaxy.The structure measures 4 billion light-years across at its greatest dimension; our own Milky Way galaxy, which is 100,000 light-years across, is […]
Read moreCartoon – Lab Leftovers
Autism caused by packaging chemicals?
Nine out of 10 Americans have a chemical called bisphenol A in their urine, said Nicholas D. Kristof. BPA, which can be found in plastic food containers, soup can linings, ATM receipts, and many other consumer products, is a proven “endocrine disruptor”—a substance that mimics or alters human hormones. Studies have already linked BPA to breast cancer, diabetes, and hyperactivity, […]
Read moreA warmer world will be a hazier one
Aerosols, tiny solid and liquid particles suspended in the atmosphere, impact the environment by affecting air quality and alter the Earth’s radiative balance by either scattering or absorbing sunlight to varying degrees. What impact does climate change, induced by greenhouse gases (GHGs), have on the aerosol “burden”–the total mass of aerosols in a vertical column of air? Past research done […]
Read more