More frequent moments in the climate change debate as emissions continue

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More frequent moments in the climate change debate as emissions continue
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Recent years have witnessed unprecedented interest in how the burning of fossil fuels may impact on the global climate system. Such visibility of this issue is in part due to the increasing frequency of key international summits to debate emissions levels, including the 2015 21st Conference of Parties meeting in Paris. In this perspective we plot a timeline of significant climate meetings and reports, and against metrics of atmospheric greenhouse gas changes and global temperature. One powerful metric is cumulative CO2 emissions that can be related to past and future warming levels. That quantity is analysed in detail through a set of papers in this ERL focus issue. We suggest it is an open question as to whether our timeline implies a lack of progress in constraining climate change despite multiple recent keynote meetings—or alternatively—that the increasing level of debate is encouragement that solutions will be found to prevent any dangerous warming levels?

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Centre Party (Germany)
OK so we're trying to do this piece of work is actually asked a question of as as the Paris meeting coming up and it's been a lot of other meetings and keynote reports that have happened over the recent decades at the same time that we know we are changing in some features of the system we know the atmospheric greenhouse gasses are continuing to rise in the atmosphere this timeline so plots against time of how these change the coder meetings available in various forms what we're trying to do here is put the 2 together the question we want to ask in this is is it the
case that that there's been many meetings international levels that we've hits the State and yet emissions is still going up and 1 thing is still continuing hence this is our of our fortune reflection on successes meetings but actually in the opposite situation is now unprecedented interest in this issue must good and when we compare against the changes in the physics of the system we can be confident now that this President interest is going to raise a real drive to keep climate change
constraint for instance within the 2 degrees of warming levels in pre-industrial times OK so when we consider these plots in this diagram we have the change in
atmospheric concentrations of greenhouse gasses in which succumbed outside the dominant 1 in 1 the panels we have the amount of rooming that's been recorded since pre-industrial times now that is going on we do know that has been quite significant levels of global warming the doesn't imply causality between global warming and the C. O. 2 concentrations the changes atmospheric gas compositions this census will clamor research is all about and so far has been very very difficult admittedly based on a low different computer modeling to some extent also look at ice core Racal verse of records is being extremely difficult to explain the woman that we've seen as a potential natural cycle so indications are that there is a correlation between announcer CO 2 that we end up when the atmosphere the matter will mean that we witness and that is led the IPCC which is not as the top 5 quotations on this timeline diagram increasingly strong statements that there is an attributable link between anthropogenic emissions of fossil fuels and global warming OK so on
the 2nd panel in this diagram we have not only an atmosphere it's CO 2 concentrations rules have the cumulative emissions fossil fuels and I was the total since pre-industrial times the now that is a very interesting metric that scale of interest but there is a strong link between the cumulative emissions total emissions and the amount of more middle people so we can relate that future emissions by adding them all up the historical emissions and come to some assessment of whether we likely to cross over to you Griese global warming target that is commentaries that operate in parallel with a special Issue vol environmental research letters that pick apart that metric the reason that metric is is of such interest in a very easily allows us to get the goods and characterize the generational issue in other words you the less that we admit in this generation allows more essential sensual might be essential missions to survive for future generations so it captures this issue of behavior now how impact on generations ahead and that is the
conclave in the 2nd panel of lists of his multipanel diagram OK so that's the 1st as
a start multi in the bottom panel we look at the number of times it was climate change or
global warming European research reach of paper titles and also appeared just in the texts of books in general so on she's gonna lot technical bookseller discussing climate change but it also suggest you know very very rapidly growing interest in this subject I think yeah that's to be encouraged and is encouraging in its hand come right because it suggests were taken seriously potentially serious issue