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	(Sponsor this newsletter) Testing the Multiverse: Beyond the Limits of Science? (Op-Ed) Robert Lawrence Kuhn is the creator, writer and host of "Closer to Truth," a public television series and online resource that features the world's leading thinkers exploring humanity's deepest questions (produced and directed by Peter Getzels). This essay is the second in a series of three on the multiverse. The first is available at: "Confronting the Multiverse: What 'Infinite Universes' Would Mean." Kuhn contributed this essay to Space.com's Expert Voices: Op-Ed. Read More » A Paradox From Climate Change Past (Video) Human history is rife with stories of environmental catastrophe and powerful civilizations felled by climate change — the Mayans, the Egyptians, the Sumerians. "Climate change causes crisis, and a generation of scientists and historians have now reconstructed that essential relationship," said Georgetown University historian Dagomar Degroot. Degroot studies the Little Ice Age, a period of global cooling from around 1500 to 1850, during which temperatures dropped 0.6 degrees Celsius in the Northern Hemisphere. Read More » South America's prehistoric people spread like 'invasive species' By Will Dunham WASHINGTON (Reuters) - When the first prehistoric people trekked into South America towards the end of the Ice Age, they found a wondrous, lush continent inhabited by all manner of strange creatures like giant ground sloths and car-sized armadillos. Only much later did people muster exponential population growth after forming fixed settlements with domesticated crops and animals. "Humans are just like any other invasive species," Stanford University biology professor Elizabeth Hadly said. Read More » South America's prehistoric people spread like 'invasive species' By Will Dunham WASHINGTON (Reuters) - When the first prehistoric people trekked into South America toward the end of the Ice Age, they found a wondrous, lush continent inhabited by all manner of strange creatures like giant ground sloths and car-sized armadillos. Only much later did people muster exponential population growth after forming fixed settlements with domesticated crops and animals. "Humans are just like any other invasive species," Stanford University biology professor Elizabeth Hadly said. Read More » Scientists seek crowdfunding to test 'chemical castration' of pedophiles Researchers from Sweden are seeking crowdfunding to test a type of "chemical castration" in men who report having paedophilic thoughts and fantasies. The team from Sweden's Karolinska Institute want to see whether a drug called degarelix - a hormone therapy that blocks brain signals which stimulate the testicles to produce testosterone - reduces the men's sexual urges. While not all people with paedophilia molest children, child sexual abuse is a widespread problem with around 1 in 10 girls and 1 in 20 boys suffering abuse, according to Christoffer Rahm, a Swedish consultant psychiatrist leading the planned trial. Read More » Alaska volcano goes quiet but remains 'restless,' scientists say An Alaskan volcano that began erupting 10 days ago, belching an ash cloud 20,000 feet (6,906 meters) high that triggered aviation warnings, ended its latest round of seismic activity on Wednesday but may not stay quiet for long, scientists said. Satellite observations showed no evidence of further "eruptive activity" on Mount Pavlof and low levels of seismic activity suggested that the volcano had subsided, the Alaska Volcano Observatory said in a statement. The Federal Aviation Administration issued a "red" aviation alert in response to the ash cloud, which required that local and regional flights, including cargo air traffic out of Anchorage, be re-routed. Read More » Scientists seek crowdfunding to test 'chemical castration' of paedophiles By Kate and Kelland LONDON (Reuters) - Researchers from Sweden are seeking crowdfunding to test a type of "chemical castration" in men who report having paedophilic thoughts and fantasies. The team from Sweden's Karolinska Institute want to see whether a drug called degarelix - a hormone therapy that blocks brain signals which stimulate the testicles to produce testosterone - reduces the men's sexual urges. While not all people with paedophilia molest children, child sexual abuse is a widespread problem with around 1 in 10 girls and 1 in 20 boys suffering abuse, according to Christoffer Rahm, a Swedish consultant psychiatrist leading the planned trial. Read More » Scientists seek crowdfunding to test 'chemical castration' of paedophiles By Kate Kelland LONDON (Reuters) - Researchers from Sweden are seeking crowdfunding to test a type of "chemical castration" in men who report having paedophilic thoughts and fantasies. The team from Sweden's Karolinska Institute want to see whether a drug called degarelix - a hormone therapy that blocks brain signals which stimulate the testicles to produce testosterone - reduces the men's sexual urges. While not all people with paedophilia molest children, child sexual abuse is a widespread problem with around 1 in 10 girls and 1 in 20 boys suffering abuse, according to Christoffer Rahm, a Swedish consultant psychiatrist leading the planned trial. Read More » Scientists look at hangers-on amid mass die-off of bats ALTAMONT, N.Y. (AP) — As white-nose syndrome kills millions of bats across North America, there's a glimmer of hope at hibernation spots where it first struck a decade ago: Some bats in some caves are hanging on. Read More » To help curb climate change, stop wasting food: scientists By Megan Rowling BARCELONA (Thomson Reuters Foundation) - Reducing food waste around the world would help curb emissions of planet-warming gases, lessening some of the impacts of climate change such as more extreme weather and rising seas, scientists said on Thursday. Up to 14 percent of emissions from agriculture in 2050 could be avoided by managing food use and distribution better, according to a new study from the Potsdam Institute for Climate Impact Research (PIK). "Agriculture is a major driver of climate change, accounting for more than 20 percent of overall global greenhouse gas emissions in 2010," said co-author Prajal Pradhan. Read More » To help curb climate change, stop wasting food: scientists By Megan Rowling BARCELONA (Thomson Reuters Foundation) - Reducing food waste around the world would help curb emissions of planet-warming gases, lessening some of the impacts of climate change such as more extreme weather and rising seas, scientists said on Thursday. Up to 14 percent of emissions from agriculture in 2050 could be avoided by managing food use and distribution better, according to a new study from the Potsdam Institute for Climate Impact Research (PIK). "Agriculture is a major driver of climate change, accounting for more than 20 percent of overall global greenhouse gas emissions in 2010," said co-author Prajal Pradhan. Read More » One Question Could Help Spot Drinking Problems in Teens One simple question may reveal a lot about a teen's risk of developing an alcohol problem, a new study finds. The study focused on teen alcohol screening, or questions that doctors can ask to flag those who may be at risk for problem drinking. Results showed that one question — how many days they drank in the past year  — was particularly good at spotting those at risk for a drinking problem, which researchers call alcohol use disorder. Read More » Street Heroin Use Could Be Curbed with Morphine-Like Drug Heroin addiction is notoriously difficult to overcome, but a new study finds that some people with particularly serious addictions may benefit from treatment with a drug related to morphine. The study, from researchers in Canada, focused on the small portion of people with heroin addiction who have tried and failed to treat their addiction multiple times with existing medications — mainly, the oral medications methadone and buprenorphine — and who continue to use street drugs and engage in illegal activity to obtain the drugs. Among this specific group, treatment with medical-grade heroin has been shown to be effective in reducing illegal heroin use and getting people to stick with treatment. Read More » Are You Impulsive? Maybe Your Brain Is to Blame Some people's brain structures may lower their inhibitions and make it easier for them to engage in risky or impulsive behavior, according to a new study. Researchers examined more than 1,200 healthy young adults with no history of psychiatric disorders or substance dependence. "The findings allow us to have a better understanding of how normal variation in brain anatomy in the general population might bias both temperamental characteristics and health behaviors," said Avram Holmes, an assistant professor of psychology and psychiatry at Yale University in New Haven, Connecticut, who led the study. Read More » SpaceX's Dragon Is Launching a Huge Science Haul to Space Station Friday Packed in the Dragon cargo ship, among supplies for the crew, will be a group of fungi that could help scientists develop new medicines, as well as the latest installment in a series of experiments to grow vegetables in space. The cargo also will include live mice that will be part of an experiment that could help scientists develop drugs to prevent muscle degeneration in astronauts or people on Earth. Friday's launch will be SpaceX's eighth mission to the station, as part of NASA's Commercial Resupply Mission. Read More » To help curb climate change, stop wasting food - scientists By Megan Rowling BARCELONA (Thomson Reuters Foundation) - Reducing food waste around the world would help curb emissions of planet-warming gases, lessening some of the impacts of climate change such as more extreme weather and rising seas, scientists said on Thursday. Up to 14 percent of emissions from agriculture in 2050 could be avoided by managing food use and distribution better, according to a new study from the Potsdam Institute for Climate Impact Research (PIK). "Agriculture is a major driver of climate change, accounting for more than 20 percent of overall global greenhouse gas emissions in 2010," said co-author Prajal Pradhan. Read More » Bad Touch: Intimate Robot Interactions Cause Discomfort Li and his colleagues Wendy Ju and Byron Reeves at Stanford University will present their findings on June 13 at the annual conference of the International Communication Association in Fukuoka, Japan. Follow us @livescience, Facebook & Google+. Read More »
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