Haven’t had a chance to hang out near the ocean for a while, so it’s time to reach back into the archives for a seaside set from the coast of the Mediterranean, a region feeling the full impact of global warming. One recent climate study found that the current dry spell in the region is the most intense in the past 900 years, and just in the past couple of weeks, scientists said this past summer’s record heatwave across the region, dubbed Lucifer, had clear global warming fingerprints all over it. And along with direct heat impacts, there are other effects. In the eastern Mediterranean, warmer water has enabled tropical fish to invade, and they are having a big impact on marine ecosystems. There are also clear signs that global warming will intensify droughts and the wildfire danger in the region. NOAA has also warned the region could become more susceptible to winter drought.
Agency’s move could violate federal environmental laws
A little more than a year after determining that greenhouse gas emissions from aircraft are a threat to public health, the EPA has stopped working on developing new standards for the air industry.
That’s not surprising, given that the Trump administration has sought to undermine nearly every rule set to limit heat-trapping pollution, but environmental advocates with the Center for Biological Diversity want to know more about the latest step backward by the EPA. Continue reading “EPA stops work on airline emissions standards”→
Acting now could help protect lakes from global warming
The Ödsee in Upper Austria.
Þingvallavatn in Iceland, where researchers have recently discovered a fish pathogen that was previously unknown in this country’s cold, clear freshwater ecosystems.
Sunset at one of the world’s great steppe lakes, the Neusiedler See.
Had a chance to explore some of Austria’s most beautiful lakes this summer, and spent time talking to scientists about how they will be affected by global warming. As it turns out, there are a few thing we can do to try protect them from climate change impacts, but we have to act now, and in the hope that we can tackle the larger problem in the near future by drastically reducing greenhouse gas emissions. But in the short-term, protecting lakes from pollution, making sure their source waters are clean and cool and trying to protect groundwater that feeds into lakes can help make them more resilient to climate change. In some cases, fisheries managers should probably be thinking about trying to create climate sanctuaries for some species, and regular monitoring, linked with adaptive management, can also help control impacts. Read my story for Deutsche Welle to learn more.
Study says ancient extreme global warming event was caused by C02 buildup from massive eruptions
The role of volcanoes on Earth’s climate is complex. It’s well known that aerosol particles from eruptions like Mt. St. Helens can cool temperatures by blocking a small part of the sun’s energy, but a new study suggests that an extreme global warming event about 56 million years ago was caused by massive volcanic C02 emissions.
The research, led by the University of Southampton found evidence that atmospheric C02 doubled within a relatively short period of time, on the geological scale, resulting in a global temperature spike that drove mass extinctions. The eruptions happened during formation of the Atlantic Ocean, according to the study published in the journal Nature. Continue reading “Can volcanoes overheat the Earth?”→
A far-ranging study of wood frogs have found that the bog-breeding amphibians could be vulnerable to global warming at the southern edge of their range, and that the population could shift northward, similar to many other species.
But the research, covering more than 740 wood frog populations in 27 different areas, also showed some nuance in the response to climate change. That makes it hard to determine which species and which populations are in danger of declining or disappearing, according to researcher David Miller, assistant professor of wildlife population ecology at Penn State.Local and regional precipitation trends are nearly as important as temperature in determining the fate of many animals, he explained, and that’s especially true with moisture-sensitive creatures such as amphibians. Continue reading “How will global warming affect wood frogs?”→
From aboard a commercial airline flight, Greenland’s shore looks peaceful during the peak of the summer icemelt season, but the Arctic is changing fast, and U.S. policy is in disarray.
Tasty chanterelles mushrooms sprout in an Austrian forest.
A lightning blast strikes the ground near Keystone Resort, in Colorado.
The Verdon River in southern France may start flooding later than water managers expect, which makes it tougher to know when to store and when to release water in reservoirs for flood control and hydropower.
Global warming and nitrogen are a bad combination and will result in serious algae problems in many waters.
The last few weeks included a productive stretch of writing some interesting climate change and environmental stories. My favorite was about reef restoration in Florida, where hundreds of scientists and volunteers are gardening corals and transplanting them back out into the ocean. Careful monitoring shows there’s good potential to rebuild some ecosystems, especially where it counts, like offshore Miami, which would benefit from intact reefs to help protect the coast from storm surges. You can read the story at Fusion’s Project Earth.
I also spent quite a bit of time listening to people like the U.S. Coast Guard commander, high-ranking naval officers and scientists speaking about environmental changes in the Arctic, and how well the the U.S. is prepared to respond to those changes in a story for Pacific Standard. In another story for the same publication, I wrote about how fungi, through their symbiosis with plants, play a much larger role in regulating the terrestrial part of the carbon cycle than was thought just a few decades ago.
There is also a clear climate change signal evident in the timing of river floods across Europe, with some regions seeing serious flooding come up to two weeks earlier. This has implications for how communities manage water, as I described in this piece for InsideClimate News. Besides the potential for damage to communities, changes in precipitation and flooding patterns also will affect the concentration of nutrient pollution like nitrogen, which leads to toxic algae blooms and ocean dead zones.