Tag Archives: Carbon dioxide in Earth’s atmosphere

Remind me again why the west needs a carbon tax?

Man-made CO2 emissions 1965 -2012 Guest Essay by Ed Hoskins The following calculations and graphics are based on information on worldwide national CO2 emission levels published by BP [i] in June 2013 for the period from 1965 up until 2012. … Continue reading

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Posted in Carbon dioxide, carbon tax | Tagged , , , , , , , | 78 Comments

CO2 Residence Times, Take Two

Guest essay by Joe Born In a recent post Christopher Monckton identified me as a proponent of the following proposition: The observed decay of bomb-generated atmospheric-carbon-14 concentration does not tell us how fast elevated atmospheric carbon-dioxide levels would subside if … Continue reading

Posted in Carbon dioxide | Tagged , | 209 Comments

US Carbon Dioxide Emissions – down by source

I’ve often said my email is like a fire hose. Here’s an example of something that got lost in the stream and I didn’t find it until last night while looking for another email. Zeke Hausfather writes (In August 2012): … Continue reading

Posted in Carbon dioxide, carbon tax | Tagged , , , , , , , | 42 Comments

China’s “Emission Cuts” Not What They Seem

By Paul Homewood http://europe.chinadaily.com.cn/business/2013-11/21/content_17120968.htm “and make sure that the commitment of reducing CO2 emission per unit of GDP by 40-45% by 2020 from 2005 level is fulfilled” We often hear claims that China are moving much faster than the West … Continue reading

Posted in Climate News | Tagged , , , , , , , | 82 Comments

Excerpts from Salby’s Slide Show

UPDATED – see below Monckton provides these slides for discussion along with commentary related to his recent post on CO2 residence time – Anthony There is about one molecule of 13C in every 100 molecules of CO2, the great majority … Continue reading

Posted in Uncategorized | Tagged , | 320 Comments

Warmism: Credible Politics, Incredible Science

Guest essay by Paul Murphy Here’s Wikipedia’s simplified but canonical description of the greenhouse effect:   The greenhouse effect is a process by which thermal radiation from a planetary surface is absorbed by atmospheric greenhouse gases, and is re-radiated in … Continue reading

Posted in Alarmism, Global warming | Tagged , , | 102 Comments

Study: The Late Cretaceous Period was likely ice-free

From the University of Missouri-Columbia COLUMBIA, Mo. – For years, scientists have thought that a continental ice sheet formed during the Late Cretaceous Period more than 90 million years ago when the climate was much warmer than it is today. … Continue reading

Posted in Paleoclimatology, Sea ice | Tagged , , , , , , , | 118 Comments

Earth’s self regulation of Carbon Dioxide is remarkably stable

From CSIRO: “What we learned is that in spite of droughts, floods, volcano eruptions, El Niño and other events, the Earth system has been remarkably consistent in regulating the inter-annual variations in atmospheric carbon dioxide levels,” Tropical ecosystems regulate variations … Continue reading

Posted in Carbon dioxide, Earth | Tagged , , | 72 Comments

An Evidence-Based Approach To Pricing CO2 Emissions

PRESS RELEASE New Paper Proposes Cost-Effective Climate Policy That Gets Around Key Scientific Uncertainties London: A new paper, published today by the Global Warming Policy Foundation, proposes a radical new climate policy approach that offers to be the most cost-effective … Continue reading

Posted in carbon tax | Tagged , , , , , , , | 104 Comments

The bombtest curve and its implications for atmospheric carbon dioxide residency time

Studies of Carbon 14 in the atmosphere emitted by nuclear tests indicate that the Bern model used by the IPCC is inconsistent with virtually all reported experimental results. Guest essay by Gösta Pettersson The Keeling curve establishes that the atmospheric … Continue reading

Posted in Carbon dioxide, IPCC | Tagged , , , , | 519 Comments

Dr. Vincent Gray on historical carbon dioxide levels

NZCLIMATE TRUTH NEWSLETTER NO 312 JUNE 4th 2013 CARBON DIOXIDE There are two gases in the earth’s atmosphere without which living organisms could not exist. Oxygen is the most abundant, 21% by volume, but without carbon dioxide, which is currently … Continue reading

Posted in Carbon dioxide | Tagged , , , , , , , | 115 Comments

AGU says CO2 is plant food

Elevated carbon dioxide making arid regions greener 31 May 2013 AGU Release No. 13-24 WASHINGTON, DC—Scientists have long suspected that a flourishing of green foliage around the globe, observed since the early 1980s in satellite data, springs at least in … Continue reading

Posted in Biomass | Tagged , , , , , , , | 64 Comments

The 400 PPM FUD Factory: T-shirts now available

Steve Milloy at JunkScience points out what is above the fold in the NYT today – FUD Fear, Uncertainty, Doubt Here’s his scan of the front page at right: Readers may recall my post What 400 ppm of CO2 in … Continue reading

Posted in Climate News, Fun_stuff | Tagged , , | 114 Comments

WSJ op-ed by Schmitt and Happer: In Defense of Carbon Dioxide

 ‘The incredible list of supposed horrors that increasing carbon dioxide will bring the world is pure belief disguised as science’ – Dr. William Happer: The demonized chemical compound is a boon to plant life and has little correlation with global … Continue reading

Posted in Carbon dioxide, Opinion | Tagged , | 28 Comments

The curious case of rising CO2 and falling temperatures

Guest essay by Tony Brown Some readers might recall my recent article ‘The Long Slow Thaw?’ In this I reconstructed Central England temperature to 1538 from its current instrumental date of 1659. I was surprised by two notable periods of … Continue reading

Posted in Uncategorized | Tagged , , , , , | 140 Comments

The effectiveness of CO2 as a greenhouse gas becomes ever more marginal with greater concentration

The political target of limiting the effect of Man-made global warming to only +2⁰C can never be attained. Guest essay by Ed Hoskins According to well understood physical parameters, the effectiveness of CO2 as a greenhouse gas diminishes logarithmically with … Continue reading

Posted in Carbon dioxide, IPCC | Tagged , , , , , , , | 155 Comments

Good news! Elevated CO2 may extend interglacial, prevent next ice age

Reader “Markx” writes in Tips and Notes on a paper I hadn’t noticed before (because it was published before WUWT was born). Of course it only works if CO2 has a long residence time and/or our elevated emission levels continue. … Continue reading

Posted in Carbon dioxide, Positive effects of CO2 | Tagged , , | 110 Comments

USA meets Kyoto protocol goal – without ever embracing it

New EIA data shows USA inadvertently meets 1997 Kyoto protocol CO2 emission reductions without ever signing on thanks to a stagnant economy. Lowest level of CO2 emissions since 1994. In 2012, a surprising twist and without ever ratifying it, the … Continue reading

Posted in Carbon dioxide, Politics | Tagged , , , | 83 Comments

Enivronmentalists worst nightmare? GMO’d ‘frankenbugs’ could make fuel directly from CO2

From the University of Georgia: UGA discovery may allow scientists to make fuel from CO2 in the atmosphere Athens, Ga. – Excess carbon dioxide in the Earth’s atmosphere created by the widespread burning of fossil fuels is the major driving … Continue reading

Posted in Carbon dioxide, Curious things, Energy | Tagged , , , , , , | 130 Comments

A climate of scepticism

Guest post by Philip Lloyd, Energy Institute, CPUT The world is getting a little warmer. Of that there is no doubt. The measurements by which we know that it is warming are poor. The figures are not accessible, and keep … Continue reading

Posted in The Skeptic's Case | Tagged , , , , , , , | 144 Comments

A graphical look at worldwide CO2 numbers

Some numbers that you may find interesting, graphed by Ed Hoskins from France. Here’s more:

Posted in Carbon dioxide | Tagged | 118 Comments

New paper suggests that CO2 ‘…could prove to be our salvation from the next ice age’

From the University of Gothenburg , another head exploder for Joe Romm and company. Carbon dioxide – our salvation from a future ice age? Mankind’s emissions of fossil carbon and the resulting increase in temperature could prove to be our … Continue reading

Posted in Carbon dioxide, Paleoclimatology | Tagged , , , , | 86 Comments

US shale gas drives up coal exports

From the University of Manchester US CO2 emissions from domestic energy have declined by 8.6% since a peak in 2005, the equivalent of 1.4% per year. However, the researchers warn that more than half of the recent emissions reductions in … Continue reading

Posted in Uncategorized | Tagged , , , , | 53 Comments

New paper on climate sensitivity estimates 1.1 ± 0.4 °C for a doubling of CO2

This new paper (in review at the discussions section) at Climate of the Past has some interesting approaches  using Oxygen 18 isotope records from benthic foraminiferas acquired in Deep Sea Drilling project (DSDP) on the Kerguelen Plateau off the coast … Continue reading

Posted in Climate sensitivity | Tagged , , | 152 Comments

An independent constraint on climate sensitivity

Guest post by Christopher Monckton of Brenchley Abstract Global CO2 emissions per unit increase in atmospheric CO2 concentration provide an independent constraint on climate sensitivity over the timescale of the available data (1960-2008), suggesting that, in the short term and … Continue reading

Posted in Climate sensitivity | Tagged , , | 169 Comments

Earth’s CO2 sinks increasing their uptake

Readers may recall these WUWT stories:  Earth’s biosphere booming,  California’s giant redwoods inconveniently respond to increased carbon dioxide, and Forget deforestation: The world’s woodland is getting denser and change could help combat climate change. NASA satellite imagery pointed this out long ago. … Continue reading

Posted in Carbon dioxide, Carbon sequestration | Tagged , , | 235 Comments

USA CO2 emissions may drop to 1990 levels this year

I graphed the EIA data, shown below. What is most interesting is that this is market driven, not mandate driven. Amazing Shale: US CO2 Emissions Plummet Towards 1990 Levels by John Hanger (via The GWPF) America’s carbon emissions may drop … Continue reading

Posted in Carbon dioxide, Coal, Energy, natural gas, petroleum | Tagged , , , , , , , | 101 Comments

CO2 Is Greening The Planet: African Savannahs Getting a Makeover to Forests

I’ve covered this before, such as when NASA posted satellite data showing that the biosphere is booming thanks to CO2 fertilization. This new study from Goethe University in Frankfurt, Germany suggests that the Umbrella Thorn Acacia trees will make a … Continue reading

Posted in Carbon dioxide, Forests, Land use land cover change, Positive effects of CO2 | Tagged , , , , , , , | 85 Comments

The Bern Model Puzzle

Guest Post by Willis Eschenbach Although it sounds like the title of an adventure movie like the “Bourne Identity”, the Bern Model is actually a model of the sequestration (removal from the atmosphere) of carbon by natural processes. It allegedly … Continue reading

Posted in Carbon dioxide | Tagged , , , , , , , | 251 Comments

What – you mean we aren’t controlling the climate?

Correlation of Net CO2 emissions with climate properties shows that the growth in CO2 may be natural Story submitted by WUWT reader Steve Brown The narrative of the catastrophic anthropogenic global warming has been challenged at many levels but this … Continue reading

Posted in Carbon dioxide, Climate sensitivity | Tagged , , , , , , , , | 253 Comments

Chicken Little of the Sea Visits Station ALOHA

Guest post by David Middleton Introduction My never-ending search for actual observational data that support the hypothesis of catastrophic anthropogenic ocean acidification (Chicken Little of the Sea) has taken me to offshore Hawaii and Station ALOHA.

Posted in Alarmism, Environment, Oceans | Tagged , , , , , , , | 35 Comments

Carbon, on the uptake

From the University of Bristol Carbon cycling was much smaller during last ice age than in today’s climate Atmospheric carbon dioxide (CO2) is one of the most important greenhouse gases and the increase of its abundance in the atmosphere by … Continue reading

Posted in Carbon dioxide, Paleoclimatology | Tagged , , , , , , , | 85 Comments

The Fate of All Carbon

Guest post by David Archibald The fate of all carbon is Davy Jones’ locker. Following the post on the imminent decline in world oil production and the effect that would have on agricultural operating costs at http://wattsupwiththat.com/2011/10/27/peak-oil-now-for-the-downslope/, let’s have a … Continue reading

Posted in Carbon dioxide | Tagged , , , , , | 187 Comments

New study: Earth may be able to recover from rising carbon dioxide emissions faster than previously thought

That’s the good news. The bad news is that they think it will take 30,000-40,000 years, even though they “don’t know exactly where this carbon went” (their own words from the press release) in their model. Isn’t it great when … Continue reading

Posted in Carbon dioxide, Modeling | Tagged , , | 70 Comments

Commentary- Hansen Draft Paper: Paleoclimate Implications for Human-Made Climate Change

by Dr. Martin Hertzberg As the saying goes: “If all you have in your hand is a hammer, then everything looks like a nail”. It is hopeless to expect that Hansen could possibly analyze data objectively – all he has … Continue reading

Posted in Climate_change, Earth | Tagged , , , | 198 Comments