Get the very latest weather forecast for Sofia, Bulgaria, including hour-by-hour views, the 10-day outlook, temperature, humidity, precipitation for your area.
<p>Up to 10 inches of rain fell over 24 hours in parts of Texas, prompting numerous evacuations and rescues overnight and into Sunday, while a 20-year veteran firefighter in northeast Oklahoma died after being swept away in floodwaters.</p>
<p>The Southern Nevada Water Authority determined nearly a decade ago that 70% of its water went right into the ground, with no chance for recycling, thanks to an army of indulgent blue-collar homeowners, mostly married guys, who over-watered their lawns.</p>
An extremely dangerous and life-threatening flooding situation will continue into Memorial Day, across portions of Texas, Oklahoma, Kansas, Arkansas and...
Four giant craters were found by accident in the muddy floor of one of Switzerland's largest lakes, a new study reports. Researchers surveying Lake...
Parts of the East this coming week will feel more like July than May, with temperatures well above average.
Extreme heat waves like the one that killed , but cold days actually cause more deaths than hot ones, a new study says. 
<p>Children, especially those who live along coastal areas, should understand what a hurricane is and how to prepare for one.</p>
<p>Unbroken by major landmasses, Antarctica's ocean currents race around the icy continent with powerful force. Now, a new image from the Los Alamos National Laboratory in New Mexico reveals in amazing detail the turbulent rush of swirling eddies and currents in the Southern Ocean.</p>
Santa Barbara County in California is in a state of emergency after a pipeline ruptured, spilling thousands of gallons of crude oil. We look at the extent of the damage, the environmental concerns and why these oil spills keep happening.
Memorial Day weekend may be the unofficial start of summer, but in parts of Maine it still looks a little like winter.
<p>Memorial Day marks the unofficial start to summer and summer warmth will dominate the Northeast next week, but that does not mean an end to shots of cooler air.</p>
<p>California farmers who hold some of the state's strongest water rights avoided the threat of deep mandatory cuts when the state accepted their proposal to voluntarily reduce consumption by 25 percent amid one of the worst droughts on record.</p>
CNN meteorologist Derek Van Dam reports on the impact of an oil spill off the coast of California.
Geologists were sent to earthquake-damaged mountain villages in Nepal this week to assess landslide risks before the rainy season begins next month, an official said Friday.
Each spring everyone who lives in the so called tornado alley keeps a close eye on the sky. Meteorologist Jim Cantore explains what causes twisters to from in tornado alley.
Despite a brutally cold and snowy winter across much the Northeast and mid-Atlantic, experts say tick populations across both regions are thriving this...
When fronts collide, trouble is coming
Dramatic video shows a man caught in flood waters that surged down the streets of Izmir, Turkey. CNN's Derek Van Dam reports.
The massive shelves of ice that ring Antarctica have been shrinking over the past couple of decades, and that could have grave implications for sea level rise. It’s not the ice shelves themselves that pose a problem: they’re mostly afloat, so when they melt or dump massive icebergs, it doesn’t affect water levels any more than melting ice cubes make your drink rise and overflow. But the ice shelves serve as massive barriers that slow the flow of glaciers out to sea. As the shelves shrink, the barrier weakens, allowing glaciers to start moving faster. And since that ice is land-based, it adds to sea level rise. The Ross Ice Shelf at the Bay of Whales. Credit: NOAA This faster glacial flow has already been documented in several parts of the frozen continent. Now, a new report in Science has identified one more. Using satellite data from NASA and the European Space Agency, scientists have shown that glaciers flowing into the sea from the Southern Antarctic Peninsula have sped up markedly since 2009. Collectively, write the authors, these glaciers, most of them unnamed, are now adding enough ice to put an extra 56 billion metric tons of water into the oceans every year. That won’t add more than the tiniest fraction to the current annual sea level rise of about 3 mm per year (about a tenth of an inch) caused by melting ice worldwide along with sea water that is expanding as it warms. But if glaciers in Antarctica and Greenland keep moving faster as the century progresses, estimates of sea level rise by 2100, which now stand at between 10 and 32 inches at a minimum, may have to be revised upward. However much the oceans swell over the current century, that figure will come on top of the 8 inches of sea level rise the planet has already seen since 1900. That increase has made storm surges like the one launched by Superstorm Sandy far more devastating than it would have been 100 years earlier. It has also led to increased flooding risk in cities like Baltimore, Philadelphia, Charleston, Norfolk, and Honolulu, to name a few. By 2100, according to one study, as much as $210 trillion in property and infrastructure worldwide, along with tens of millions of people, could be at risk from coastal flooding. Projections of future sea level rise carry uncertainty because scientists aren’t sure how the vast ice sheets on Greenland and Antarctica will respond to warming. This study is part of the effort to reduce that uncertainty. In this case the scientists didn’t measure the glaciers’ speedup directly. Instead, they measured their thickness, using radar from NASA’s Cryosat-2 satellite to gauge the height of the glaciers’ surfaces above sea level at many different points. “Cryosat has been doing this for all of Antarctica,” lead author Bert Wouters, of the University of Bristol in the United Kingdom, said. “But we noticed a huge signal in this one little spot that nobody had seen before, so we decided to have a closer look.” The spot was located on the western side of the Antarctic Peninsula where it joins the main Antarctic continent. The thinning amounted to meters per year in some places, Wouters said. Thinning can be caused by surface melting, but this degree of thinning couldn’t be explained by melting, he said. It can also happen when relatively fluffy ice on a glacier’s surface compresses under its own weight, but again, that couldn’t have produced such dramatic changes. In the end, they concluded, the ice must be thinning because it was being stretched by faster glacial flow. The European GRACE satellite, meanwhile, which measures changes in the mass of the glaciers, confirmed that the ice wasn’t just being packed tighter. It was actually thinning. Neko Harbor, an inlet on the Antarctic Peninsula. Credit: David Stanley/flickr “It’s not totally surprising, based on what we already know, but it’s worrisome,” Eric Rignot, of the University of California, Irvine and NASA’s Jet Propulsion Laboratory, said. Rignot, who co-authored a recent study on the disintegration of Antarctica’s Larsen B ice sheet, was not involved in this research. The meltback and disintegration of ice shelves in this area, in particular, are more worrisome than most because of the topography that lies under them. The so-called “grounding line” in this part of Antarctica — the point where the ice shelf is anchored to land — is on ground that slopes downward toward the continent’s interior. Scientists generally agree that this and other ice shelves are mostly melting from below, as warm ocean water eats at their undersides. In a case like this, however, if the ice shelf thins sufficiently, it will float free of the grounding line, allowing warm water to rush underneath and attack areas that were previously protected. “It’s hard to know, but that could mark a point of no return,” Wouters said. This configuration of ice and bedrock has already been documented in the Weddell Sea, on the other side of the Antarctic peninsula. “We learn something new every year about Antarctic changes,” Rignot said. Unfortunately, little of it bodes well for the world’s coastlines and the people who live there.
A protest at a Nestle bottling plant in Los Angeles over bottling water during the drought.
May 21, 2015; 2:05 PM ET Colombian police jumped into a swollen and debris-filled river in Salgar to save a dog that had been swept away by the current.
Flames Sebastian Dooris/Flickr CC by 2.0 We tend to think of oil and gas as a resource that was only utilized by humans once we entered the industrial age and our appetite for oil exploded. But unlike in Civilization V, oil doesn't just appear out of nowhere as soon as you upgrade to a new technological era. In the real world, we've been using the substance for a very long time. Places where natural gas seeped out of the ground (called seeps) were once a source of wonder in the ancient world. When lit, they burned for long periods of time, kindling fervor and awe in people around the world. Some came to see a few of these sites as holy places, and temples were built around them, where pilgrims seeking answers to life's great questions could journey to find enlightenment. (Of course, thanks to Douglas Adams, we now know that the Answer is 42.) It turns out that the locations of those places may still hold a lot of answers to environmental and economic questions. In a chapter of his new book Natural Gas Seepage, researcher Giuseppe Etiope explains that knowing where and when natural gas bubbled to the surface in ancient times could help use understand how the resource moves through the Earth. Natural gas is, well, a gas. That means that it is highly unlikely to stay in one place for any amount of time, unless it is physically surrounded by something, like a balloon or rocks. But just like that shiny mylar balloon deflated after your birthday party, turning into a sad, crumpled heap on the floor as helium wriggled its way free of its cheerful prison, natural gas can escape the layers of rocks that keep it underground. Eternal Flame G. Etiope The Eternal Flame at the Zoroastrian Fire Temple in Azerbaijan used to be fed by natural gas seeping out of the ground. Now, it is fed by a pipe. But unlike your birthday balloon, natural gas can take a lot longer to seep out of the ground. Etiope suggests that by looking at ancient texts that describe temples built next to pillars of fire or furnaces, geologists can get a better idea of how gas might move underground. In many cases the natural gas source that powered these flames, such as the eternal flame at the Zoroastrian temple (seen above), went extinct, but that doesn't mean that we can't get new information from the long-dead wells. In the case of the fire temple, a new natural gas seepage cropped up about 5.5 miles away, likely from a related source. Figuring out how these seeps move, grow, and eventually die out over long time periods (in some cases, thousands of years) can help people working in the oil and gas industry figure out how natural gas leaks might move away from artificial wells. In addition, knowing how long the eternal flames have been burning could help environmental scientists estimate how much natural gas leaked into the atmosphere over the centuries. With greenhouse gas emissions on the rise researchers are trying to get an accurate count of how much gas is headed into the atmosphere from both natural and human-made sources. That means they want all the data they can get their hands on, even if it is a blast from the past.
Just a few months ago Wichita Falls, Texas was suffering through a terrible drought. Now there are evacuations in the city after days of rain.
After a tornado warning was issued for the Boonsville area Tuesday night, Christina Lopez and her husband, Pablo, tried to flee their small mobile-home community. But the gate wouldn't open, having been slammed shut by the strong winds. The couple were forced to ride out the storm in their car under a stand of trees. "We couldn't see...
Ahhh... Adam Klein/Flickr CC By SA 2.0 In these United States summer is unofficially the sunny, sweltering weeks between Memorial Day and Labor Day. Yes, astronomically speaking, it’s June 21 to September 23. We’re choosing to ignore that here in favor of the cultural definition, because come on, early June feels way more like summer than mid-September. And this year, we get one extra week. Memorial Day (which is always the last Monday in May) is falling on its earliest possible date, and Labor Day (the first Monday in September) on its last possible date. That means summer stretches an endless 15 weeks instead of the usual 14. The last time this happened was 2009, and the next time will be 2020--see the handy chart below. So get out there and enjoy it. Length Of Cultural Summer Katie Peek/Popular Science Each dot here represents a day, starting with May 1 each year. The days that fall between Memorial Day and Labor Day are in yellow, rather than green. In some years, highlighted in gray, the two milestones capture an extra seven days. And 2015 is one of those magical years.