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blogging on earth

Blogging on EARTH: Rarity the only reason for Venus transit fever?

If you read one or more stories leading up to yesterday’s transit of Venus across the face of the sun (or if you followed #VenusTransit on Twitter), you likely learned that the transit is akin to a solar eclipse — when the moon crosses directly between Earth and the sun, temporarily blocking part or all of the latter from our view — with the caveat that Venus only blacks out a small dot of the sun because of its distance from Earth. So what was all the fuss about? What was it about the celestial equivalent of watching a marble roll slowly across a dinner plate that brought people out in droves, from professional and amateur scientists to casual observers and families with young children?

06 Jun 2012

Venus in transit to the transit

5 June 2012 - Reader Elizabeth Talley snapped an iPhone photo of an ice ring around the sun yesterday afternoon in Port Charlotte, Fla., and unexpectedly also captured this image of Venus as it heads toward this evening’s rare celestial event — a transit of the sun. The seven-hour transit, during which the planet will appear as a small black disk moving across the solar face, will begin at 6:03 p.m.

05 Jun 2012

Policy in the field: What's next for tax policies and the American clean energy economy?

It takes green to be green. Renewable energy technology requires dedicated investments, whether public or private, to succeed. The costs are steep, but many consider the cause worthwhile. After all, politicians on both sides tout having diverse array of energy resources as important for national and economic security. Nonetheless, in this tight economic climate, very little is safe. Now, Congress is starting to look at federal tax policies as they affect renewable energy development.

16 May 2012

Blogging On EARTH: Wisconsin’s microquake mystery

On the list of earthquake-prone states, Wisconsin does not rank highly. Yes, occasionally, America’s Dairyland is subjected to light rumbles emanating from its neighbor to the south, Illinois. But Wisconsin is hardly where you’d expect to find much excitement, let alone fear, over the possibility of homegrown seismic activity. And yet, that's exactly what happened a few weeks ago, when hundreds of people in Clintonville, Wis. began dialing 911 with reports that their homes were being inexplicably shaken overnight by terrifying booms.

11 Apr 2012

Blogging on EARTH: Congress considers severe weather policy options

It doesn’t take a geoscientist to know that severe weather impacts our lives. Tornadoes, hurricanes, windstorms, solar storms, droughts … the list goes on.

04 Apr 2012

CryoScoop: Two-decade Antarctic drilling effort complete

Valery Lukin, director of the Russian Antarctic program, confirmed today that a team of Russian scientists has completed an Antarctic drilling project two decades in the making, according to the Associated Press. The team finished drilling on Feb. 5 through 3.25 kilometers of ice to reach Lake Vostok, the largest subglacial lake in the world.

07 Feb 2012

Comment: Volcanic versus anthropogenic carbon dioxide: The missing science

“Volcanoes add far more carbon dioxide to the oceans and atmosphere than humans.” So says geologist Ian Plimer of the University of Adelaide in his 2009 best seller “Heaven and Earth: Global Warming — the Missing Science.” With this assertion, Plimer brings volcanic carbon dioxide degassing front and center in the climate change debate, reviving and reinforcing this wildly mistaken notion.

30 Jul 2010

Elemental Traces in the Atlantic: An encouraging start, an inauspicious end

Follow my blog at EARTH online, "Elemental Traces in the Atlantic," over the next couple of months, where I’ll be writing from the ship and detailing the scientific journey. And stay tuned early next year, when EARTH and I will bring you a wrap-up of the cruise. Read the original story here.
03 Nov 2010

Blogging on EARTH: EGU: Geologists help law enforcement

EARTH’s Carolyn Gramling is in Vienna, Austria, at the European Geophysical Union meeting this week. One session in particular caught her attention this week — how geoscientists are creating new maps and tracking mechanisms to help law enforcement officials. For more from the meeting, see her first and second dispatches.

08 Apr 2011

Brazil says 'no thanks' to OPEC

I didn't know you could do that. 

Back in August, Iran had invited Brazil to join OPEC, but Brazil declined, saying it had "other priorities." And now, Saudi Arabia has invited Brazil into the cartel.

17 Sep 2008

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