environment
skookumchick | June 25, 2008You may have heard that honeybees in this country are dying off. You may know that scientists have called this epidemic "CCD," or colony collapse disorder, where honeybees seem to lose the ability to find the hive again, and disappear forever. Scientists think CCD may be caused by a virus, or a combination of other factors, such as the presence of pesticides or the poor nutrition and high antibiotic use of commercial bee populations. There are other theories too.
Nature on PBS reports that, if the rate of collapse continues, all honeybee populations in the US will die out by 2035.
But did…
scientificactivist | June 24, 2008On Monday, the Supreme Court agreed to hear Winter v. Natural Resources Defense Council, a case regarding the Navy conducting sonar training exercises in the proximity of marine mammals--some of which are threatened or endangered species. A large body of evidence indicates that these sorts of sonar exercises--which generate extremely loud underwater sounds--damage the hearing of these animals and disrupt their behavior, often leading to beached whales. And, at their worst, these exercises have been linked to scores of whale deaths--likely from decompression sickness as the whales panicked…
gregladen | June 23, 2008NASA's JPL has a new web site which focuses on surface conditions on one specific planet: The Earth.
It has a Sea Level Viewer which is basically a very fancy menu for a number of multi-media presentations, and a list of current or proposed missions. I am not overly impressed with this, but it may be a good resource for the kiddies.
Much more interesting, and in fact, quite impressive, is the "Climate Time Machine" ...
This shows ice melting, sea level change, CO2 emissions, and average global temperature. The CO2 emissions is fascinating, because CO2 emissions are an assay of…
scientificactivist | June 23, 2008I've been pretty open here about my support of Barack Obama's bid for the presidency, but one issue I certainly disagree with him on is his support of corn ethanol subsidies. Unfortunately, it looks like that this is one issue he's unlikely to improve on, as The New York Times reports today that ties to the corn ethanol industry permeate the highest levels of the Obama campaign:
Mr. Obama is running as a reformer who is seeking to reduce the influence of special interests. But like any other politician, he has powerful constituencies that help shape his views. And when it comes to domestic…
revere | June 20, 2008This is the third (and last) post in our primer of the science of green house gases (see the first two here and here). Our objective is to explain what makes something a greenhouse gas. Why is CO2 a greenhouse gas and not O2 (oxygen) or N2 (nitrogen)? In the first two posts we set the table by explaining electromagnetic (EM) radiation, how we describe it and how it interacts (or doesn't interact) with matter. We pointed out that all physical bodies act like little transmitters of EM radiation and that they can also absorb EM radiation -- but only at the same wavelengths they emit it. Some…
revere | June 19, 2008In the first post in this primer series we discussed the nature of electromagnetic radiation. It is via EM radiation that the sun's energy reaches the earth and since it is the balance between the energy that reaches the earth and the energy that is radiated away from the earth that is at the center of the global warming problem, we need to get this part straight. So far we have only talked generally (and very superficially) about what EM radiation is and pointed out that it can carry energy from one point to another (e.g., from the sun to the earth and from the earth back out to surrounding…
voltagegate | June 18, 2008I finally had a chance to get out to Sweetwater Creek State Park last week, and we picked a perfect day for it. It was warm and slightly muggy, just the type of weather to bring out some of the Georgia wildlife I've been looking forward to seeing. Unfortunately, I wasn't quick enough to film them, but I did get some pics of things that don't move (perceptibly anyway).
There was a small beaver dam only about a half mile into the walk, but unfortunately the beavers weren't around.
The ruins were perhaps the most interesting part of the park. This was once the New Manchester Manufacturing…
revere | June 18, 2008Objection to the scientific basis of greenhouse warming seems to be the gift that keeps on giving. That is, if you like getting the same gift over and over again and returning it because it's defective never works. Still, hope springs eternal that understanding something about it will make the disagreements clearer. So this will be the first post about the underlying science. There will be more. It's a primer, so if you know the science it's not for you. But understanding what's under the hood can be explained without requiring agreement on global warming. On the grounds that learning about…
grrlscientist | June 17, 2008tags: Gerry Ellis, WoLong Nature Preserve, Ultimate Pandas, Giant panda, Ailuropoda melanoleuca, nature filming, endangered species, DVD review
Everyone loves pandas, right? In fact, these lovable bears are the most recognizable icons worldwide for endangered species, even while remaining endangered themselves. But recently, China has made an effort to protect the giant pandas' native habitat and to establish several in situ captive breeding programs to bolster the dwindling numbers of wild giant pandas, as revealed in a charming new video, Ultimate Pandas, by nature photographer, Gerry Ellis…
voltagegate | June 16, 2008Yet another great Monday morning read from Wayne (even if it was posted over the weekend): an explanation of the thigmonastic response, leaf folding in plants, and the differences between movement in animals and movement in plants.
revere | June 16, 2008Our post on what is behind the Right Wing attack on science drew a lot of attention and numerous comments. I'd like to emphasize some key points that may have gotten lost in the details (for the details, please see the original post). We'll use climate change skepticism as an example, but the principles hold for other kinds of assaults, for example, on public health concerns regarding bis phenol A.
The cardinal point is that the attacks aren't about science. Refuting false statements about whether CO2 is or is not a driver of global warming may seem (and be) necessary, but it is not the…
revere | June 13, 2008If you want to see what difference environmental protection enforcement makes, just go to eastern Europe or the former Soviet Union. Or China. In the 1970s the US led the world in cleaning its environment and was consolidating its gains with well-staffed, motivated federal and state environment agencies. But that was then. Last weekend the US Senate couldn't even manage a paltry 60 votes to stop a filibuster of a bipartisan and none too strong global warming bill. This kind of failure isn't new. The US slow motion fall in environmental leadership has been going on for decades. In the Bush…
clock | June 12, 2008There is a huge forest fire raging in Eastern North Carolina, unfortunately affecting the Pocosin Lakes National Wildlife Refuge. The smoke has now moved more than 100 miles to the west, which means right here. It's been stinking of smoke all day, getting worse and worse as time went on. And it appears it will not get any better soon.
grrlscientist | June 12, 2008tags: tornado, Manhattan Kansas, weather
"Hello? Dad? Can I borrow your car?"
Image: Dave Rintoul, 12 June 2008 [larger view].
[Includes slideshow]
After I returned from Manhattan, Kansas, I thought of it as a wonderful, magical place where I would always be able to return, to see birds and photograph lots of native wildlife, to find a warm and safe place with my good friends, Dave and Elizabeth. (I am sure all of you know Dave quite well, since his gorgeous photographs are often featured as the "Image of the Day" on this site.) But while I was preoccupied with my imaginings, I was…
edyong | June 11, 2008
A Canadian spruce and a Caribbean pine couldn't live in more different environments. One sits amid freezing tundra and the other basks in tropical heat. But despite their wildly different habitats, both trees have something in common - the temperature inside their leaves. Over the course of a year, their leaves manage to stay at a balmy average temperature of 21 degrees Celsius, the ideal temperature for photosynthesis.
The amazing finding comes from a survey of 39 trees by Brent Helliker and Suzanna Richter from the University of Pennsylvania. The pair looked at both deciduous and…
skookumchick | June 10, 2008This is another excerpt from our travel journal to Isle Royale. The first day is here. Photos by me, text by my husband.
Monday May 26
Copper Harbour to Isle Royale
Writing is often a bit behind. [No kidding.] Today's entry starts on the day advertised, but I am under few illusions that I will finish before the light kicks out. The sun sets very late here on the extreme northwest edge of the US part of the Eastern time zone -- 9:45 pm and I'm still on natural light, streaming in through our large picture window overlooking Tobin Harbour. They definitely set up the cabins right, and also…
voltagegate | June 9, 2008Critterthink, the blog of the Center for Native Ecosystems in Denver, CO has posted a guide to the 2008 Farm Bill from a conservation perspective, highlighting what they call the good, the bad and the ugly. If you haven't had time to review the bill yourself, take advantage of the hard work these folks put into breaking it down for us.
The Farm Bill is an omnibus bill passed every few years, setting a policy toolkit for agriculture in the US. It has massive implications for industry, food, foreign policy and, for our purposes, conservation and the environment.
Here are a few things that stuck…
j7uy5 | June 9, 2008In 1996, the Federal Agriculture Improvement and Reform Act of 1996
("Freedom to Farm Act") called for elimination of government stockpiles
of grain. I'm sure someone thought it made sense, at the
time.
Now, the United States government has no reserves of butter, cheese,
dry milk, barley, corn, oats, sorghum, soybeans, wheat, rice, sugar,
honey, peanuts, canola seed, crambe, flaxseed, mustard seed, rapeseed,
safflower seed, sunflower seed, peas, lentils, chickpeas, and cotton.
[Source: US Farm Service Agency,
href="http://www.fsa.usda.gov/FSA/webapp?area=home&subject=coop&topic…
grrlscientist | June 5, 2008tags: New Guinea, Papua, deforestation, satellite analysis, biodiversity, field research, endangered species
Before and After: Forest area near Milne Bay in 1990 (top) and 2005 (bottom).
Image University of Papua New Guinea.
I have been fascinated by New Guinea ever since I first read about this unique island in Wallace's marvelous book, The Malay Archipelago, when I was just a kid. My fascination with New Guinea led to my passion for the birdlife there, especially my love for the Birds of Paradise, and the lories and other parrot species. I had always secretly dreamt of visiting this…
scientificactivist | June 5, 2008A report by the NASA inspector general released earlier this week acknowledged that political appointees in the NASA press office censored climate scientists from 2004 to 2006. That would have been interesting news... about two years ago. Yawn.
What caught my eye, though, were these claims in an article by The Washington Post's Juliet Eilperin:
The probe came at the request of 14 senators after The Washington Post and other news outlets reported in 2006 that Bush administration officials had monitored and impeded communications between NASA climate scientists and reporters.
James E. Hansen…