To
limit future temperature increase to 2 °C, emissions must peak soon, as shown by the blue line on the right.
Choice 4: Why would we want to
limit future temperature increase to 2 degC above pre-industrial temperature when: a) we don't know what pre-industrial temperature was, b) the most recent pre-industrial temperature occurred during the LIA, c) temperature rises representing a significant chunk of the remaining allowed increase have happened in the past without anthropogenic forcing, and, d) we really don't know how to achieve this goal?
Not exact matches
The discoveries of these proteins and genes have the potential to address a wide range of critical agricultural problems in the
future, including the
limited availability of water for crops, the need to
increase water use efficiency in lawns as well as crops and concerns among farmers about the impact heat stress will have in their crops as global
temperatures and CO2 levels continue to rise.
The extreme heat and related climate disturbances mean that delegates to a global climate conference scheduled for Paris in early December will almost certainly be convening as weather - related disasters are unfolding around the world, putting them under greater political pressure to reach an ambitious deal to
limit future emissions and slow the
temperature increase.
A
future strong positive feedback from the carbon cycle, on the other hand, could add as much CO2 to the atmosphere as humans have, leading to
temperature increases well beyond the International Panel on Climate Change's (IPCC) upper
limits.
Dr Fatih Birol, Chief Economist at the IEA, had this to say about the findings: «This significant
increase in CO2 emissions and the locking in of
future emissions due to infrastructure investments represent a serious setback to our hopes of
limiting the global rise in
temperature to no more than 2ºC.»
A paper used for guiding
future business planning at the Anglo - Dutch multinational assumes that carbon dioxide emissions will fail to
limit temperature increases to 2C, the internationally agreed threshold to prevent widespread flooding, famine and desertification.
Looking ahead, were solar changes
limited to what has been measured in the last fifteen years,
future changes in the Sun's total radiation would have only a negligible effect on the
temperature increases of 1 to 3 °C that are now projected in IPCC models for the end of the next century.