Tag Archives: earth

The ‘Super El Niño’ Forecast Fadeout

by Myrna Posted on November 7, 2014

Early-year warnings of a “super El Nino” are history. See the article here:   The ‘Super El Niño’ Forecast Fadeout ; ; ;

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The ‘Super El Niño’ Forecast Fadeout

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The World Just Had its Hottest "Year" on Record

by AkilahRCGX Posted on October 21, 2014

Mother Jones

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This story originally appeared in Slate and is republished here as part of the Climate Desk collaboration.

A few days ago, I told you that—according to NASA data—we just finished the warmest six-month streak on record. Welp, it just got worse.

According to data released Monday by the National Oceanic and Atmospheric Administration, last month was the warmest September on record globally. What’s more—and here’s the kicker—the NOAA says the Earth has just completed its warmest 12-month period on record. From the NOAA:

The past 12 months—October 2013–September 2014—was the warmest 12-month period among all months since records began in 1880, at 1.24°F above the 20th century average. This breaks the previous record of +1.22°F set for the periods September 1998–August 1998, August 2009–July 2010; and September 2013–August 2014.

2014 continues on a record warm pace. NOAA

Though this record-setting “year” is likely to go unheralded compared with a calendar year record, it’s actually more impressive statistically. (Each calendar year contains a dozen 12-month-period starting points. Starting the year in January is completely arbitrary.) But, don’t fret, the NOAA says we’re still on pace to beat the calendar year record in 2014, too.

On Monday, the NOAA also announced that global oceans are again record-warm—the third time this year that ocean temperatures have soared to new heights. The most recent record was set just last month. Ocean warming has implications for the health of coral reefs, sea level rise, and weather patterns worldwide.

What’s most shocking about our planet’s current warm stretch is that the heat records are being broken without an El Niño—the periodic oscillation that warms the Pacific Ocean. But, one of those is on the way, too—and it might stick around for a while.

So far in 2014, record-setting hot spots have been scattered almost uniformly across the globe, from Alaska to California to Cuba to Scandinavia to Brazil to Australia. A couple of exceptions: The eastern United States has been one of the coldest spots on the planet, relatively speaking. So has coastal Antarctica, where record amounts of sea ice have been recorded—strangely, also possibly connected to global warming.

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The World Just Had its Hottest "Year" on Record

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Dot Earth Blog: Is There Room for Agreement on the Merits and Limts of Efficient Lighting

by Myrna Posted on October 21, 2014

Seeking constructive dialogue on the merits and limits of clean, efficient lighting. See original article here:  Dot Earth Blog: Is There Room for Agreement on the Merits and Limts of Efficient Lighting ; ; ;

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Dot Earth Blog: Is There Room for Agreement on the Merits and Limts of Efficient Lighting

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Does the Anthropocene, the Age of Humans, Deserve a Golden Spike?

by Myrna Posted on October 16, 2014

A meeting of geologists and other analysts explores whether Earth has entered a geological age made by humans. Read More:  Does the Anthropocene, the Age of Humans, Deserve a Golden Spike? ; ; ;

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Does the Anthropocene, the Age of Humans, Deserve a Golden Spike?

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Dot Earth Blog: Does the Anthropocene, the Age of Humans, Deserve a Golden Spike?

by Myrna Posted on October 16, 2014

A meeting of geologists and other analysts explores whether Earth has entered a geological age made by humans. See original – Dot Earth Blog: Does the Anthropocene, the Age of Humans, Deserve a Golden Spike?

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Dot Earth Blog: Does the Anthropocene, the Age of Humans, Deserve a Golden Spike?

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Climate change’s relationship with the sea just got more mysterious

by JamisonFosbrook Posted on October 6, 2014

Climate change’s relationship with the sea just got more mysterious

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6 Oct 2014 4:54 PM

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Climate change’s relationship with the sea just got more mysterious

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I have abysmal news: The deep oceans are not getting warmer.

OK, that sounds like a good thing. But hold your applause! Surface waters — everything above 1.24 miles — are still hot and getting hotter. It’s the deep ocean abyss that has not warmed measurably since we started keeping track in 2005, according to a new paper out in Nature Climate Change.

“The sea level is still rising,” said Josh Willis, NASA scientist and coauthor, presumably anticipating the ‘I-told-you-so’s of deniers. Sorry guys, we don’t get out of global warming that easily.

What is surprising about this study is that scientists often theorized that deep oceans took the heat from our atmosphere, causing a lull in the pace of global warming observed over the last decade or so. The case of the missing heat, it seems, is still wide open.

Since sea-level rise is the joint project of 1) water that expands as it heats up, and 2) meltwater that has been locked up in landbound ice, we will continue to see the tidelines inching up our coasts as those partners in crime continue to do what they do best. But scientists wanted to know how much sea-level rise could be attributed to warming in the deep oceans. So they used satellite images and direct temperature measurements to extrapolate the amount of sea-level rise happening in the upper ocean, plus the estimated volume of de-iced ice water. Whatever rise was left over must be due to increased temperatures in the deep ocean — but that turned out to be next to nothing.

So the question remains: If the deep oceans aren’t warming, where is all that extra heat going?

We … don’t really know, at least not yet. But it’s definitely going somewhere. Another paper published in the same issue of Nature Climate Change suggests that we’ve been massively underestimating (by 24 to 58 percent) the amount of heat absorbed by the upper layer of the ocean since the 1970s. If the deep, deep oceans aren’t getting any warmer, it could be that we’ve been overlooking some sneaky heat somewhere else. In any case, the bottom line is that we still have a lot to learn about how global warming and sea-level rise act on a system as complicated as a planet. What we DO know is that this isn’t some Olive Garden-size portion of troll food to keep climate deniers going for the next couple months.

Not that it’ll stop them from trying. Trolls will eat anything.

Source:
NASA Study Finds Earth’s Ocean Abyss Has Not Warmed

, NASA.

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Climate change’s relationship with the sea just got more mysterious

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Dot Earth Blog: On the Path Past 9 Billion, Little Crosstalk Between U.N. Sessions on Population and Global Warming

by Myrna Posted on September 21, 2014

As the United Nations convenes sessions on global warming and population growth, a new study foresees rising human numbers through 2100. Link: Dot Earth Blog: On the Path Past 9 Billion, Little Crosstalk Between U.N. Sessions on Population and Global Warming

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Dot Earth Blog: On the Path Past 9 Billion, Little Crosstalk Between U.N. Sessions on Population and Global Warming

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We just had the hottest August ever

by TerranceTimperl Posted on September 18, 2014

we’re all in this pot together

We just had the hottest August ever

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18 Sep 2014 4:56 PM

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On the tails of the hottest May, one of the worst droughts in U.S. history, some of the earliest big hurricanes ever, and just generally one of the weirdest years of extremes, we now have the hottest August on record. NOAA announced that the global temperature average for August 2014 was 61 degrees Fahrenheit. Now that’s no sauna — what do you expect, it’s already PSL-season and half the planet is still shivering through a sub-equatorial winter — but it seems especially toasty when you realize that average includes both land and sea temperatures. In fact, this was the hottest month in the oceans EVER.

Yeah, you know what that means: There are a lot of sweaty mermaids down there right now. (This just in: I’m being told that’s not really what that means.)

NOAA

The previous all-time-hottest record for oceans was set in June of this year; now, just two months later, we have already busted that by a slight but definitive 0.05 degrees F. We know that the oceans have been quietly absorbing our extra heat and carbon emissions forever, but now we’re finally starting to feel it. And with the oceans heating up at unprecedented rates, we can expect everything else to get a whole lot hotter, too.

When we talk about global warming, we have a tendency to leave out a large part of the globe — specifically, the three-quarters of it that are covered with water. This makes sense — humans don’t live there, and we are very good at ignoring things that aren’t a part of our own experience — but it makes less sense when you consider the numbers: More that 90 percent of the earth’s total warming to date has been absorbed by the oceans.

skepticalscience

We’re already feeling the effects of that 2.3 percent of warming in our atmosphere — now picture what’s happening to the ocean ecosystems we depend on. (If you can’t picture it, Google it.) Then then there are the three billion of us who rely on the ocean as a primary source of protein.

Oh, and speaking of everything else getting a lot hotter — the three-month period from June to August this year? Another one for the books: On land and at sea, the hottest summer we’ve ever had. Period. Just something to think about when you head to the Climate March this weekend.

Everyone loves a record-breaker, but maybe we could slow it down on these temperature records for a bit?

Source:
Global Analysis – August 2014

, NOAA.

World Smashes All-Time Temperature Records Ahead of UN Climate Summit

, Mashable.

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We just had the hottest August ever

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National Briefing | Science: Global Heat Records Set for Month and Season

by Myrna Posted on September 18, 2014

The globe smashed more heat records last month, including earth’s hottest August and summer, federal meteorologists said. View article: National Briefing | Science: Global Heat Records Set for Month and Season ; ; ;

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National Briefing | Science: Global Heat Records Set for Month and Season

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Can Humans Get Used to Having a Two-Way Relationship with Earth’s Climate?

by Myrna Posted on September 10, 2014

Can humans get used to having a two-way relationship with Earth’s climate? Original post:  Can Humans Get Used to Having a Two-Way Relationship with Earth’s Climate? ; ; ;

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Can Humans Get Used to Having a Two-Way Relationship with Earth’s Climate?

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