There could be more trouble ahead for pollinators, as a new species of Varroa mite is developing the ability to parasitize European honeybees. That’s a new threat for insects already under pressure from pesticides, nutritional deficiencies and disease, according to a Purdue University study.
The scienists found some populations of Varroa jacobsoni mites are shifting from feeding and reproducing on Asian honeybees, their preferred host, to European honeybees, the primary species used for crop pollination and honey production worldwide. To bee researchers, it’s a grimly familiar story: V. destructor made the same host leap at least 60 years ago, spreading rapidly to become the most important global health threat to European honeybees. Continue reading “Study IDs new parasite threat to honeybees”→
Conservation groups challenge planned fossil fuel leases on public lands in Colorado
Conservation groups are challenging the Bureau of Land Management’s plans to auction fossil fuel leases on 20,000 acres of public land in Colorado based on concerns about air and water pollution, and potential harm to imperiled species — including threatened Colorado River fish such as the Colorado pikeminnow and razorback sucker, and plant species such as the parachute beardtongue.
Most days, the street in front of the Austrian parliament is filled with tourists taking pictures of the archittecture, but on this blustery early spring evening, thousands demonstrated against a proposed government crackdown on refugees.
Kids know no borders — and that’s the way it should be.
Police maintain a buffer zone between left- and right-wing demonstraters in Vienna.
Refugees seek entry into the West at the border of Austria and Slovenia in November 2015.
Don’t take freedom to travel for granted.
By Bob Berwyn
The Summit Voice Sunday Set is set aside for scenic landscape shots or nature photo essays, which is usually a nice break from the previous week’s news. But today we have a public service announcement instead. Travel as we know it is threatened by a rising tide of right-wing, nationalistic populism around the world.
Living in the new political post-factual, post-truth era is going to require journalists to take their game to a much higher level if they want to regain credibility with readers who have come to distrust any source outside their immediate cybernews bubble. Travel writers could be a big part of the much-needed journalism revival. Nobody is in a better position to help show how interconnected the world has become in the past few decades. It’s an illusion to think that what happens in one country won’t affect many others. Continue reading “Sunday set: Eyes wide open”→
Antarctic sea ice retreat could set stage for ice shelf collapses
Staff ReportMonths of above-average temperatures in the Arctic slowed the growth of sea ice formation to a crawl during the second half of October, the National Snow and Ice Data Center reported in its latest monthly update.The ice scientists said that, starting Oct. 20, Arctic sea ice started setting daily record lows for extent. After mid-October, ice growth returned to near-average rates, but extent remained at record low levels through late October. Both sea surface and air temperatures have remained unusually high, extending from the surface high up into the atmosphere. Continue reading “Climate: Sea ice at both poles way below average”→
Study suggests carbon uptake by forests has doubled since the 1950s
Scientists say they’ve place yet another piece in the complex global plant-carbon cycle, with a new study suggested that atmospheric CO2 levels have plateaued in recent years because forests and grasslands are removing more of the heat-trapping gas. The research was led by a scientist with the Department of Energy’s Lawrence Berkeley National Laboratory .
As the Paris climate agreement goes into effect, it’s important to remember that, so far, there’s been a lot more talk than action by the global community. Plans are one thing, action is another, and unless there are significant cuts in greenhouse gas emissions in the next few years, there’s almost no chance to limit global warming to less than 2 degrees Celsius.
Here are some sobering facts to show why immediate action is needed, starting with the latest annual greenhouse gas bulletin from the World Meteorological Organization.
Carbon dioxide, methane and nitrous oxide all reached new record high concentrations in the atmosphere in 2015. According to the analysis, CO2 levels are not 144 percent higher than in pre-industrial times; methane is 256 percent higher, and nitrous oxide is 121 percent higher. It’s likely that CO2 concentrations, as measured at Mauna Loa, will stay above 400 parts per million for all of 2016. The increase of methane from 2014 to 2015 was larger than that observed from 2013 to 2014 and that averaged over the last decade. Continue reading “The Paris climate agreement is now in force”→