"In fact, only in the case of essentially complete elimination of emissions can the atmospheric concentration of CO2 ultimately be stabilized at a constant level."  
(IPCC assessment 2007 FAQ 10.3)
Bill Gates
​ ​TED Talk
Innovating to
​ Zero Carbon

It is scientifically impossible for today's catastrophic atmospheric carbon dioxide concentration (400 ppm) to fall ​unless our industrial carbon emissions stop, and we must get below 350 ppm to prevent planetary catastrophe. 
"We should be talking about emissions targets, and the right emission target is zero."
(Ken Caldeira climate expert Stanford​)
"I asked the top scientists on this several times: Do we really have to get down to near zero? Can't we just cut it in half or a quarter? And the answer is that until we get near to zero, the temperature will continue to rise." (Bill Gates)
can get us to 350 ppm CO2
The Burning Age Is Over
Julie Johnston sustainability adult education consultant BC Canada

15 April 2016​​  Fossil fuels could be phased out worldwide in a decade- new study

24 Sept 2015 Divestment from fossil fuels is on a roll: US$2.6 Trillion
​17 June 2015 MIT panel
backs divestment from coal, tar sand firms


Carbon Majors
Nov 2013 study ​traces 2/3 of industrial CO2 emissions
​to 90 institutions​
June 2014 Economic study Carbon tax works well
​The Economic, Climate, Fiscal, Power,
and Demographic Impact of a National
Fee-and-Dividend Carbon Tax
Tar Sands Truth.
Too big
​ not to shut down
Sept 2014Zero Emissions Manifesto For Climate Justice Movement
VIDEO Bill Gates
'These [mitigation] pathways would require substantial emissions reductions over the next few decades and near zero emissions of carbon dioxide and other long-lived greenhouse gases by the end of the century'. (IPCC 2014 AR5 Headline Statements)
'Without mitigation policies, fossil fuel and industrial emissions could reach 55-70 GtCO2 by 2050 and around 90 GtCO2 by 2100. This is in stark contrast with a low carbon future, where the energy system needs to be virtually zero carbon by 2100' (PwC Briefing: IPCC Fifth Assessment Report (AR5) Working Group III – Mitigation of Climate Change April 2014)
CO2 Levels for February 2015 Eclipsed Prehistoric Highs- highest atmospheric CO2 in 23 million years
Jeremy Leggett's
​ on-line book
​The Winning of
​ the Carbon War
‘Pathways (for mitigation)... would require substantial emissions reductions ... and near zero emissions of carbon dioxide and other long-lived greenhouse gases by the end of the century.’ (IPCC AR5 20014 SYN SPM Headline Statements)

VIDEO Powering the World (100%) With Wind, Water, & Sunlight ​Prof M. Jacobson
​CO2 is the top cause of global warming and the cause of ​ocean acidification.
​Black carbon (soot) is second only to CO2 ​in global warming contribution, ​so zero carbon now appropriately means zero CO2 and zero black carbon.
IPCC 2014 AR5
​ .. near zero emissions of carbon dioxide by the end of the century.

June 2015 Australia
​Groups ​including the ​public health
​association call for zero carbon by 2050
2013 OECD
The climate challenge: Achieving zero emissions

Zero Carbon World Youtube channel
VIDEO The Burning Age
Mapping Zero
World Emergency Manhattan Marshall Energy Project Replacing all fossil fuel energy requires a vast amount of high density zero carbon energy for heavy industry (to manufacture world clean energy infrastructure among other applications) and heavy transportation. Only big dam hydro, concentrated solar thermal  nuclear fission are available for that today, and there is little potential for more big hydro dams and limited regions for concentrated solat thermal . The clean energy renewables today do not yet have the energy density for heavy industry or transport (IPCC . We need rapid development of the best safest fission as a bridge to 'solar' fusion. Natural gas is a CO2 emitting fossil fuel and large source of leaking *fugativbe) methane  so is no bridge.
25 Dec 2016 Atmospheric CO2 is at 405 ppm ! (seasonally adjusted trend) and increasing at over 3 ppm/year (2015,2016) unprecedented in Earth history!(A. Glikson 2016)
24 Dec 2016    It's Official: Solar Energy Cheaper Than Fossil Fuels
The world’s biggest gamble 2016 'Only a global zero carbon roadmap ...'