But Thoman isn't quite ready to
attribute current warm weather entirely to a changing climate.
It kind of amazes me how quickly «skeptics» move from saying we don't understand enough about climate to
attribute the current warming trend to CO2 — the portion of the climate system we probably understand best — to saying we need to start geo - engineering with aerosols — where we have greatest uncertainty.
Not exact matches
The researchers
attribute the slowing down of the
current known as the Atlantic Meridional Overturning Circulation to global
warming.
He
attributes the
current temperature increase to Earth recovering from the Little Ice Age and, in the same article, states that «no consensus exists that man - made emissions are the primary driver of global
warming or, more importantly, that global
warming is accelerating and dangerous.»
Nights Aren't Cooling As Much As They Used To Interestingly, the study also found that part of the reason for the 2:1 ratio can be
attributed to comparatively smaller numbers of record lows than huge numbers of record highs — indicating that much of
current warming is occurring at night, something which is «consistent with years of climate model research.»
What percentage of the
current warming can be
attributed to increased carbon dioxide in the atmosphere?
She then argues that this can't be
attributed to human - caused global
warming, which presumably implies something about the
current rise in ocean heat content.
The researchers
attribute the slowing down of the
current known as the Atlantic Meridional Overturning Circulation to global
warming.
''... sea levels have indeed increased, which probably is a sign of
warming... it is difficult to
attribute the
current rate of rise... to humans when we don't know how much of the rise is natural.»
There is only so much
warming to
attribute and the
warming can't be both the equilibrium sensitivity from earlier forcings and the transient sensitivity from
current forcings.
This paper will show that despite good evidence that global temperatures are rising and that CO2 can act as a greenhouse gas and help to
warm the Earth, we are a long way from
attributing all or much of
current warming to man - made CO2.
However, there are a number of lines of evidence that have helped to convince climate scientists that the
current global
warming can be
attributed to human greenhouse gas emissions (in particular CO2).
According to John Holdren, director of the White House Office of Science and Technology Policy, Obama will emphasize the
current scientific understanding of how, while no single weather event can be
attributed to climate change, a
warming climate can make things like drought more extreme:
Some scientists have also
attributed warmer air temperatures in the North Atlantic region to the delivery of
warmer seawater (heated by solar radiation unimpeded by volcanic aerosols) by the Gulf Stream and other
currents.
This is in strong contrast with the
current position of the US National Academy of Sciences:»... there is now strong evidence that significant global
warming is occurring... It is likely that most of the
warming in recent decades can be
attributed to human activities... The scientific understanding of climate change is now sufficiently clear to justify nations taking prompt action.»
«[D] espite good evidence that global temperatures are rising and that CO2 can act as a greenhouse gas and help to
warm the Earth, we are a long way from
attributing all or much of
current warming to man - made CO2.»
That this was unusual, even the strongest trend since the
current interglacial became established is perfectly consistent with only
attributing 1/3 of
warming to human activity.
Thus far, research has
attributed much of the melting to
warmer air
currents and reduced winter freezing.
«Professor Collins when asked by the The Mail on Sunday «Can the
current extreme weather, flooding and snow storms be
attributed to global
warming and climate change?»
Reductions in sulfur dioxide (SO2) emissions in recent years, for cleaner air, mainly in South East Asia due to a severe manufacturing sector slowdown and pollution policy changes (1,2) may
attribute to
current warming, since the phenomena called global dimming is involved.
Recent estimates of climate - health impacts by the World Health Organization (WHO)(Campbell - Lendrum and Woodruff 2007) find large impacts attributable to other causes, however, especially malnutrition, with 126,000 premature deaths
attributed to the
current warming (~ 0.8 °C) via causes other than tropical diseases.