Guest essay by Eric Worrall The Daily Climate reports that global warming is set to make Californian marijuana a lot stronger – if we let it happen. According to the…
Category: Carbon dioxide
A benefit of increased Carbon Dioxide: increased efficiency in tree growth, no "Mike's Nature trick" needed
Gosh, whouda thunk it? There goes Mann’s hockey stick. No wonder he had to truncate all the data after 1960 and splice on the instrumental record. Of course, as I’ve…
NOAA Announcement: CO2 Concentration Surpasses 400ppm “for the first month since measurements began”
Guest Post by Bob Tisdale Yesterday, in the press release Greenhouse gas benchmark reached, NOAA announced: Global carbon dioxide concentrations surpass 400 parts per million for the first month since…
The Secret Life of Half-Life
Guest Post by Willis Eschenbach [see update at the end of the head post] I first got introduced to the idea of “half-life” in the 1950s because the topic of…
Almost 30 years after Hansen's 1988 "alarm" on global warming, a claim of confirmation on CO2 forcing
From the “this ought to shut up the “Skydragon slayers” department. Despite sophomoric claims that I’m a “denier”, I’ve never disputed that CO2 has a role in warming via retardation…
Why reducing CO2 Emissions is like the 'Prisoner's Dilemma'
Guest essay by Eric Worrall The Prisoner’s dilemma is a games theory scenario which explores cooperation in difficult circumstances. The classic description, there are two prisoners accused of a crime.…
NASA's new Orbiting Carbon Observatory shows potential tectonically-induced CO2 input from the ocean?
Guest essay by Martin Hovland, Geophysiscist and Professor Emeritus, Center for Geobiology, University of Bergen, Norway The newly released satellite OCO2-data indicates that there is CO2 input in tectonically active…
#AGU14 NASA's Orbiting Carbon Observatory shows surprising CO2 emissions in Southern Hemisphere
The first global maps of atmospheric carbon dioxide from NASA’s new Orbiting Carbon Observatory-2 mission demonstrate its performance and promise, showing elevated carbon dioxide concentrations across the Southern Hemisphere from…
It's always something: crops to blame for increased annual variation of CO2
From the University of Wisconsin-Madison @UWMadScience Crops play a major role in the annual CO2 cycle increase MADISON, Wis. — Each year, the planet balances its budget. The carbon dioxide…
Who needs an Orbiting Carbon Observatory to track it when you can model Carbon Dioxide movement?
Video follows. I had at first thought that this press release from NASA Goddard was telling me that they had taken the data from their new Orbiting Carbon Observatory and…
Guy Stewart Callendar
Guest Post by Willis Eschenbach I greatly enjoy reading old science. Back fifty years or more ago, they actually did real science, not the “my model says it must be…
Another major misunderstood climate issue – models ‘underplay plant CO2 absorption’
Global climate models have underestimated the amount of CO2 being absorbed by plants, according to new research. Scientists say that between 1901 and 2010, living things absorbed 16% more of…
Claim: Arctic sea ice helps remove CO2 from the atmosphere
From the University of Southern Denmark. This is a bit of a surprise, and may well be true, but I’m not too keen on the first couple of paragraphs. Summer…
A look at carbon dioxide vs. global temperature
Danley Wolfe writes: The piece below appeared in op-ed pages of many newspapers and online recently, released by by Agence-France-Presse (AFP) one of the largest news agencies in the world.…
Problems with Statistical Tests of Pre-1958 Atmospheric CO2 Concentration Data
James McCown writes: A number of climatologists and economists have run statistical tests of the annual time series of greenhouse gas (GHG) concentrations and global average temperatures in order to…
The diminishing influence of increasing Carbon Dioxide on temperature
Guest essay by Ed Hoskins Using data published by the IPCC on the diminishing effect of increasing CO2 concentrations and the latest proportional information on global Man-made CO2 emissions, these…
BOMBSHELL: Study shows greenhouse gas induced warming dropped for the past 14 years
Paper finds a decrease of IR radiation from greenhouse gases over past 14 years, contradicts expected increase – cloudiness blamed for difference. A paper published in the Journal of Climate…
CO2 data might fit the IPCC hypothesis, but it doesn't fit reality
Opinion by Dr. Tim Ball I have no data yet. It is a capital mistake to theorize before one has data. Insensibly one begins to twist facts to suit theories,…
The record of recent Man-made CO2 emissions: 1965 -2013
Ed suggested this would be a good addition to the new WUWT CO2 reference page, and I agree, but thought it should get front page attention first. It is a…
Introducing the WUWT CO2 Reference Page
Guest Post by WUWT Regular “Just The Facts” While the Pause in Earth’s temperature continues, currently 17 years and 10 months based upon RSS satellite data, it is important to…
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