Posts

December 16, 2014

+
9:47 PM | Foundation and Empire, part II
Following up on my brilliantly prescient Foundation and Empire from April, the current economic situation in Russia is worth commenting on. The Russian rouble [is] in free-fall despite [a] shock 17% rate rise says Auntie (and she really does, doesn’t she, which is silly: rates rose to 17%, not by 17%), and Timmy has some…

December 15, 2014

+
8:53 PM | Carbon News 15/12/14: smoke and mirrors
English goes silent on carbon deficit costs The Government is refusing to discuss what impact a 2030 carbon deficit will have on the economy – despite warnings from Treasury. Finance Minister Bill English has confirmed to Carbon News that Treasury is predicting carbon prices of between $10 and $165 a tonne between 2021 and 2030, […]

December 14, 2014

+
6:23 PM | AGU 2014
Once more unto the breach! Fall AGU this year will be (as last year) …the largest Earth Science conference on the planet, and is where you will get previews of new science results, get a sense of what other experts think about current topics, and indulge in the more social side of being a scientist. […]
+
6:23 PM | Ten Years of RealClimate: Where now?
The landscape for science blogging, the public discourse on climate and our own roles in the scientific community have all changed radically over the last 10 years. Blogging is no longer something that stands apart from professional communications, the mainstream media or new online start-ups. The diversity of voices online has also increased widely: scientists […]

December 13, 2014

+
9:48 PM | Torture
Some in the US have now admitted that others in the US tortured some other people: see for example [[Senate Intelligence Committee report on CIA torture]]. But on the whole, the people in charge at the time aren’t admitting it, and the CIA can’t even bring itself to use the T-word. Bystander pointed me at…

December 11, 2014

+
4:16 PM | Emit some CO2? Its warming influence should peak in about a decade
So if you cut emissions, you’ll see benefits pretty soon.

December 10, 2014

+
8:51 PM | Ten years of Realclimate: By the numbers
Start date: 10 December 2004 Number of posts: 914 Number of comments: ~172,000 Number of comments with inline responses: 14,277 Minimum number of total unique page visits, and unique views, respectively: 19 Million, 35 Million Number of guest posts: 100+ Number of mentions in newspaper sources indexed by LexisNexis: 225 Minimum number of contributors and […]
+
8:32 PM | Ten years of RealClimate: Thanks
As well as the current core team – David Archer, Eric Steig, Gavin Schmidt, Mike Mann, Rasmus Benestad, Ray Bradley, Ray Pierrehumbert, Stefan Rahmstorf – this blog has had input from many others over the years: The 90+ guest contributors who bring a necessary diversity of experience and expertise to the blog: Abby Swann, Alan […]
+
8:08 PM | Ten Years of RealClimate
In the spring of 2004, when we (individually) first started talking to people about starting a blog on climate science, almost everyone thought it was a great idea, but very few thought it was something they should get involved in. Today, scientists communicating on social media is far more commonplace. On the occasion of our […]
+
1:32 AM | Is earth’s temperature about to soar? (No pause, no hiatus, only warming)
This is a guest post by the statistician who blogs as Tamino, cross-posted from his Open Mind blog with his permission. It’s important reading… A recent blog post on RealClimate by Stefan Rahmstorf shows that when it comes to recent claims of a “pause” or “hiatus,” or even a slowdown in global surface temperature, there […]

December 09, 2014

+
2:12 AM | Carbon News 8/12/14: NZ’s multi-billion carbon blowout
We’re facing a $3b carbon crisis … and it could be worse New Zealand has a $3 billion carbon headache looming – and Treasury says that’s the conservative estimate. Carbon emissions in the period 2021 to 2030 could cost the country as much as $52 billion. Official briefings to the incoming Government acknowledge that the […]

December 08, 2014

+
10:38 AM | The most popular deceptive climate graph
The “World Climate Widget” from Tony Watts’ blog is probably the most popular deceptive image among climate “skeptics”.  We’ll take it under the microscope and show what it would look like when done properly. So called “climate skeptics” deploy an arsenal of misleading graphics, with which the human influence on the climate can be down […]
+
7:57 AM | Estimates of Anthropogenic Nitrogen in the Ocean May Be High
Inundation of nitrogen into the atmosphere and terrestrial environments, through fossil fuel combustion and extensive fertilization, has risen tenfold since preindustrial times according to research published in Global Biogeochemical Cycles. Excess nitrogen can infiltrate water tables and can trigger extensive algal blooms that deplete aquatic environments of oxygen, among other damaging effects. Although scientists have […] The post Estimates of Anthropogenic Nitrogen in the Ocean May […]

Altieri, K., Hastings, M., Peters, A., Oleynik, S. & Sigman, D. (2014). Isotopic evidence for a marine ammonium source in rainwater at Bermuda, Global Biogeochemical Cycles, DOI: 10.1002/2014GB004809

Citation
+
7:57 AM | Estimates of Anthropogenic Nitrogen in the Ocean May Be High
Inundation of nitrogen into the atmosphere and terrestrial environments, through fossil fuel combustion and extensive fertilization, has risen tenfold since preindustrial times according to research published in Global Biogeochemical Cycles. Excess nitrogen can infiltrate water tables and can trigger extensive algal blooms that deplete aquatic environments of oxygen, among other damaging effects. Although scientists have […] The post Estimates of Anthropogenic Nitrogen in the Ocean May […]

Altieri, K., Hastings, M., Peters, A., Oleynik, S. & Sigman, D. (2014). Isotopic evidence for a marine ammonium source in rainwater at Bermuda, Global Biogeochemical Cycles, DOI: 10.1002/2014GB004809

Citation
+
7:57 AM | Estimates of Anthropogenic Nitrogen in the Ocean May Be High
Inundation of nitrogen into the atmosphere and terrestrial environments, through fossil fuel combustion and extensive fertilization, has risen tenfold since preindustrial times according to research published in Global Biogeochemical Cycles. Excess nitrogen can infiltrate water tables and can trigger extensive algal blooms that deplete aquatic environments of oxygen, among other damaging effects. Although scientists have […] The post Estimates of Anthropogenic Nitrogen in the Ocean May […]

Altieri, K., Hastings, M., Peters, A., Oleynik, S. & Sigman, D. (2014). Isotopic evidence for a marine ammonium source in rainwater at Bermuda, Global Biogeochemical Cycles, DOI: 10.1002/2014GB004809

Citation

December 06, 2014

+
7:19 PM | A clever compiler is indistinguishable from malice
One disadvantage of working for my current employers is that pretty well everything I do is technically commercially sekrit, no matter how dull it might be. But this little fragment isn’t, and its fun. Perhaps it would make a good interview question. What does the following C fragment compile into… { extern bool other_thing(void); int…

December 05, 2014

+
6:19 PM | Ice Loss in West Antarctic is Speeding Up
Glaciers in one part of West Antarctica are melting at triple the rate of a decade ago and have become the most significant contributor to sea level rise in that region, a new study says. The study found that the glaciers in the Amundsen Sea Embayment of West Antarctica have shrunk by an average of 83 gigatons a year for two decades—the equivalent of the weight of Mount Everest every two years.

December 04, 2014

+
9:09 PM | Recent global warming trends: significant or paused or what?
As the World Meteorological Organisation WMO has just announced that “The year 2014 is on track to be the warmest, or one of the warmest years on record”, it is timely to have a look at recent global temperature changes. I’m going to use Kevin Cowtan’s nice interactive temperature plotting and trend calculation tool to […]
+
8:40 PM | NZ: pushing the world to go beyond 2 degrees
New Zealand is coming under increasing scrutiny in Lima, not least because it’s our turn to be reviewed by the UNFCCC process. Early next week our representatives will have to defend our position and our lack of action to 190 governments in our first “multilateral assessment.” Already, there have been some tough questions, coming especially […]

December 03, 2014

+
5:03 PM | AGU 2014: Key Events from The Earth Institute
Scientists at Columbia University’s Earth Institute will present important talks at the Dec. 15-19 meeting of the American Geophysical Union, the world’s largest gathering of earth and space scientists. Here is a journalists' guide in rough chronological order.
+
1:30 PM | Unforced variations: Dec 2014
This month’s open thread. Think history, Lima, and upcoming additions of a single data point to timeseries based on arbitrary calendrical boundaries.
+
7:06 AM | Solid Treadgold, easy action (NZ still warming fast)
It’s time to return to the delusions harboured by New Zealand’s little coterie of climate cranks about the NZ temperature record. Readers may recall that — somehow — the men who lost a court case against NIWA and then folded the charitable trust they’d used to bring the case in order to avoid paying costs, […]

November 30, 2014

+
11:26 PM | The dim and distant history of climate blogging
There’s a thread on twitter, started by “‏@JacquelynGill” noting “The Day After Tomorrow”, “‏@ClimateOfGavin” replying that “it was that movie and lame sci community response that prompted me to start blogging”, and continuing “Spring 2004 was pre-RC, Scienceblogs, etc. Deltoid was around, Stoat, @mtobis + other sci.env ppl too. But very few.” Gosh, those were…

November 28, 2014

+
7:22 PM | Help help I’m being repressed
So there I was happily making cow pies in a muddy field when some Arthur King comes along and I’m reminded once again of the violence inherent in the system. Which I think is about how seriously you should take Watt’s attempt to Godwin himself with the assistance of Ball. VVatts has a go, though.…
+
1:04 PM | A clearer picture how climate change affects El Niño?
I still remember the first time I was asked about how climate change affects El Niño. It was given as a group exercise during a winter school in Les Houghes (in France) back in February 1996. Since then, I have kept thinking about this question, and I have not been the only one wondering about […]

November 27, 2014

+
12:07 AM | Getting it Wright on sea level rise
Sea level rise of up to 40cm around New Zealand by the middle of this century is already locked in and will cause significant problems for coastal communities and infrastructure, according to a new report just released by Dr Jan Wright, the Parliamentary Commissioner for the Environment. The report — Changing Climate and Rising Seas: […]

November 26, 2014

+
7:36 PM | Why are Past Surface Temperatures and CO2 Concentrations Important?
By burning fossil fuels for heating, electricity, transportation and other purposes, humans add CO2 to the atmosphere. Yet, by comparing ways in which the Earth’s temperature, CO2 concentration, sea level and ice sheets have changed in the past, we are able to learn valuable lessons about the climate system of today and tomorrow.

November 24, 2014

+
9:41 PM | What It Would Really Take to Reverse Climate Change?
Someone pointed me at Renewable energy ‘simply WON’T WORK': Top Google engineers in El Rego, which is Lewis “you know you can’t trust me” Page’s take on What It Would Really Take to Reverse Climate Change by Ross Koningstein & David Fork. Who they? Dunno, but you can read what they say about themselves: Ross…

November 19, 2014

+
9:04 PM | This year’s (super) model: visualising atmospheric CO2
Here’s a superb high resolution supercomputer visualisation from NASA’s Goddard Space Flight Center of the flows of CO2 in the atmosphere around the planet. Apart from being beautiful to look at, it shows the major sources of CO2 emissions in the northern hemisphere, and the seasonal change in CO2 levels as the northern hemisphere summer […]

November 18, 2014

+
11:26 PM | Crowdfunding Thin Ice: the final push
The Kickstarter campaign to get climate documentary Thin Ice shown on public TV in the USA is closing in on its target. At the time of writing, the total pledged stands at NZ$21,199 — just over 75% of the way to the $27,500 needed with 4 days to go. The film’s producer, professor Peter Barrett, […]
12
32 Results