The previous warm event was the Medieval Warm Period approximately 1,000 years ago.
The previous warm event was the Medieval Warm Period approximately 1,000 years ago.
Not only because all previous records show high CO2 levels have never driven Earths temperature but because
previous warming events have all preceeded high CO2 levels by 400 to 1,400 years.
Jesper Theilgaard, a meteorologist with 40 years» experience and founder of website Climate Dissemination, said the recent trends are outside
previous warming events.
Not exact matches
The study examined 27 years worth of satellite data for sea surface temperatures,
previous coral bleaching
events, and studied how corals responded to different seawater
warming conditions.
In
previous work published in 2013 in Nature Geoscience, Pogge von Strandmann and a different team of colleagues used geochemical simulations to determine that an increase in weathering during an era of
warming 93.5 million years ago known as ocean anoxic
event 2 may have led to sequestering of carbon and cooling of the planet.
As a starting point, we explore what the traces of the Anthropocene will be in millions of years — carbon isotope changes, global
warming, increased sedimentation, spikes in heavy metal concentrations, plastics and more — and then look at
previous examples of similar
events in the geological record.
«Dermot Antoniadesa said: «At this point, it doesn't appear that the shelf ice around Ellesmere Island is any smaller now than it was during the
previous period of
warming, but because it's still shrinking, it's possible it could become, an «unprecedented»
event.
1)
Previous «Natural
Events» occurrd 2)
Warming event is occurring now 3) therefore, todays trend is natual (even though we put in a new variable not seen in 4.6 billion years)
From brand new «neutral» discussions that have concluded within a matter of weeks that global
warming is real to Geological Society taking a stand that the current situation could be comparable to
previous events in the past that were associated with periods of
warming.
Breck wrote on his blog at the time that «Before the Global
Warming folks jump on our recent extreme rain
event» they needed to look at the issue of urbanization, writing «Man building and paving over
previous fields that soaked up the rains.
(06/02/2013) Rainforests in South America have endured three
previous extreme global
warming events in the past, suggesting they will survive a projected 2 - 6 degree rise in temperatures over the coming century, reports a study published in the Annual Review of Earth and Planetary Science.
The current
warm — dry
event in California — as well as historical observations of
previous seasonal, annual, and multiannual
warm — dry
events — suggests such a regime would substantially increase the risk of severe impacts on human and natural systems.
The study, published Sunday in the journal Nature Climate Change, is the first to find correlations between rapid Arctic
warming and extreme summer weather
events, since
previous research had focused on the links between Arctic
warming and fall and winter weather patterns.
[Response: Your argument misses the point in three different and important ways, not even considering whether or not the Black Hills data have any general applicability elsewhere, which they may or may not: (1) It ignores the point made in the post about the potential effect of
previous, seasonal
warming on the magnitude of an extreme
event in mid summer to early fall, due to things like (especially) a depletion in soil moisture and consequent accumulation of degree days, (2) it ignores that biological sensitivity is far FAR greater during the
warm season than the cold season for a whole number of crucial variables ranging from respiration and photosynthesis to transpiration rates, and (3) it ignores the potential for derivative effects, particularly fire and smoke, in radically increasing the local temperature effects of the heat wave.