The science of extreme event attribution has advanced rapidly in recent years, giving new insight to the ways that human - caused climate change can influence the magnitude or frequency of some extreme weather events.
This is possible and the emerging
science of extreme event attribution is doing exactly that.
But the problem with building
the science of extreme events is that, by definition, they are rare.
Not exact matches
Historic Environment Scotland report that Ewan Hyslop, Head
of Technical Research and
Science at HES, said: «Climate change poses a number
of very real threats to Scotland's historic environment, from an increased frequency
of extreme and unpredictable weather
events to rising sea - levels.»
«Rather than trying to assess the probability
of an
extreme event occurring, a group
of researchers suggest viewing the
event as a given and assessing to which degree changes in the thermodynamic state (which we know has been influenced by climate change) altered the severity
of the impact
of the
event,» notes Dorit Hammerling, section leader for statistics and data
science at the Institute for Mathematics Applied to Geosciences, National Center for Atmospheric Research.
According to a 2013 study
of California farmers, factors like exposure to
extreme weather
events and perceived changes in water availability made farmers more likely to believe in climate change, while negative experiences with environmental policies can make farmers less likely to believe that climate change is occurring, said Meredith Niles, a postdoctoral research fellow at Harvard's Sustainability
Science Program and lead author
of the study.
Still a young
science, attribution research seeks to strengthen understanding
of the factors that contribute to
extreme events.
«The responses
of fish species to
extreme weather
events will need to be considered when planning management strategies to ensure efforts are appropriately targeted to maintain key population segments and critical evacuation routes,» said Dave Secor, the study's co-author at the University
of Maryland Center for Environmental
Science's Chesapeake Biological Laboratory.
Playing the climate blame game The question
of whether climate change is responsible for
extreme weather
events like the heatwave that set Russia alight in 2010 is one
of the hottest topics in climate
science.
NCAR, which is financed in part by the National
Science Foundation, has spent several years searching for ways to extend the predicability
of floods, droughts, heat waves and other
extreme weather
events from weeks to months as a way to give weather - sensitive sectors such as agriculture more time to protect themselves against costly losses.
Climate scientist Christopher Field, director
of the Department
of Global Ecology
of the Carnegie Institution for
Science at Stanford University in Palo Alto, California, emphasized the scientific consensus that global temperatures are rising and that climate change is likely to contribute to
extreme weather
events.
In recent years, a brand
of research called «climate attribution
science» has sprouted from this question, examining the impact
of extreme events to determine how much — often in fractional terms — is related to human - induced climate change, and how much to natural variability (whether in climate patterns such as the El Niño / La Niña - Southern Oscillation, sea - surface temperatures, changes in incoming solar radiation, or a host
of other possible factors).
Professor Michael Norton, EASAC's Environment Programme Director states, «Our 2013
Extreme Weather
Events report — which was based on the findings of the Norwegian Academy of Science and Letters and the Norwegian Meteorological Institute — has been updated and the latest data supports our original conclusions: there has been and continues to be a significant increase in the frequency of extreme weather events, making climate proofing all the more u
Events report — which was based on the findings
of the Norwegian Academy
of Science and Letters and the Norwegian Meteorological Institute — has been updated and the latest data supports our original conclusions: there has been and continues to be a significant increase in the frequency
of extreme weather
events, making climate proofing all the more u
events, making climate proofing all the more urgent.
«New data confirm increased frequency
of extreme weather
events: European national
science academies urge further action on climate change adaptation.»
New data show that
extreme weather
events have become more frequent over the past 36 years, with a significant uptick in floods and other hydrological
events compared even with five years ago, according to a new publication, «
Extreme weather
events in Europe: Preparing for climate change adaptation: an update on EASAC's 2013 study» by the European Academies»
Science Advisory Council (EASAC), a body made up of 27 national science academies in the European Union, Norway, and Switz
Science Advisory Council (EASAC), a body made up
of 27 national
science academies in the European Union, Norway, and Switz
science academies in the European Union, Norway, and Switzerland.
The letter, which was spearheaded by the American Association for the Advancement
of Science, warns
of the numerous threats posed by climate change — including
extreme weather
events, regional water scarcity, heat waves and wildfires.
«We came as close as one can to demonstrating a direct link between climate change and a large family
of extreme recent weather
events,» said Michael Mann, distinguished professor
of atmospheric
science and director, Earth System Science Center, Penn
science and director, Earth System
Science Center, Penn
Science Center, Penn State.
The frequency
of large - scale tornado outbreaks is increasing in the United States, particularly when it comes to the most
extreme events, according to research recently published in
Science.
The planet is getting warmer, ocean temperatures are rising, the polar ice caps are melting, and all
of the incontrovertible
science of climate change is that more
extreme - weather
events are an inevitable consequence.
Scientists at the Department
of Energy's Pacific Northwest National Laboratory are applying atmospheric
science research capabilities to improve our understanding
of long - term weather trends and better predict
extreme weather
events like these — and it all starts with studying clouds.
Such mixed results aren't unusual in attribution
science, which seeks to look for the causes, whether climate change or natural fluctuations, that change the odds
of extreme weather
events.
In the last week we've seen new peer - reviewed
science published, linking at least half
of 2012's
extreme weather
events to a human carbon footprint in the atmosphere and on the weather and climate.
The Project The Raising Risk Awareness project seeks to assess the role
of human - induced climate change in the risk
of extreme weather
events in developing countries and identify how such scientific evidence could help to bridge the
science - communications - policy gap, and enable these countries and communities to become more resilient in a warming world.
The Raising Risk Awareness project seeks to assess the contribution
of anthropogenic climate change and other external drivers (e.g.» El Niño») to the occurrence
of extreme weather
events in developing countries in East Africa and South East Asia, and identify how such information could help to bridge the
science - communications policy gap, and enable these countries and communities to become more climate resilient.
Burger isn't sure whether
extreme event attribution
science is strong enough yet to stand up in court, but his team is in the middle
of an in - depth analysis to answer just that question.
Noah Diffenbaugh, a senior fellow at the Woods Institute for the Environment at Stanford University, said the new analysis represented a «valuable step» in attribution work, a field
of climate
science that's developed in the past decade in an effort to understand the role
of climate change in specific
extreme events.
Over the last five years, the BAMS report has examined more than 100
events as part
of a burgeoning sub-field
of climate
science that uses observations and climate models to show how human - caused warming has already affected the odds or severity
of many
of the weather
extremes we experience now.
SHOW SUMMARY: Thomas Peterson from World Meteorological Assoc. and NOAA on
science of extreme weather
events hitting us.
The trait, he proposed, comes to the surface when such people confront strong messaging on the need for emissions reductions amid enduringly murky
science on what's driving some particular
extreme environmental phenomenon in the world — whether a brief period
of widespread melting on the Greenland ice sheet, a potent drought, a tornado outbreak or the
extreme event of the moment, the hybrid nor» easter / hurricane known on Twitter as #Frankenstorm.
According to the latest
science, in most cases (outside
of extreme heat waves) the connections between today's
extreme weather
events and human - driven climate change range from weak (hurricanes) to nil (tornadoes)-- and the dominant driver
of losses in such
events is fast - paced development or settlement in places with fundamental climatic or coastal vulnerability.
Even if you leave climate
science completely out
of it and just measure
extreme temperatures, the statistical record
of global temperatures shows that three - standard deviation
events have increased from 0.25 %
of the time (from 1951 - 1980) to 10 %
of the time now.
The journal Nature has published a helpful update on scientists» efforts to narrow one
of the biggest gaps in climate
science — the inability to reliably gauge the role
of greenhouse - driven warming in determining the intensity
of the kinds
of extreme climate
events that matter most to societies — from hurricanes to heat waves.
As such, nominations were requested for experts who can integrate findings
of climate change
science, who have expertise in vulnerability, impacts, and adaptation to
extreme events, and who have experience in the disaster risk management communities.
In 2016, the National Academies
of Sciences, Engineering, and Medicine released a report analyzing the state
of extreme event attribution
science.
Although attribution
science is clearer for some types
of events than for others, it is an important step to provide predictive forecasts
of extreme events at longer lead times, reducing risks and improving preparedness.
In the last week we've seen new peer - reviewed
science published, linking at least half
of 2012's
extreme weather
events to a human carbon footprint in the atmosphere and on the weather and climate.
LUCKNOW: The intense heat wave condition that is sweeping across India currently could be another manifestation
of an
extreme weather
event, said researchers from the New Delhi - based research and advocacy organisation, Centre for
Science and Environment (CSE), in a statement on Thursday.
«The messages
of the two points outlined in the extract above are: (1) the claims about increases in frequency and intensity
of extreme events are generally not supported by actual observations and, (2) official information about climate
science is largely controlled by agencies through (a) funding choices for research and (b) by the carefullyselected (i.e. biased) authorship
of reports such as the EPA Endangerment Finding and the National Climate Assessment.»
Also See: Watch Now: Climate Depot's Morano on Fox News Mocking «Climate Astrology»: «This is now akin to the predictions
of Nostradamus or the Mayan calendar» — Morano: «There is no way anyone can falsify the global warming theory now because any weather
event that happens «proves» their case... Man - made global warming has ceased to be a
science, it is now the level
of your daily horoscope» — Gore [in 2006 film] did not warn us
of extreme blizzards and record cold winters coming»
In summary, there is little new about climate
science in the report, and nothing at all new about attribution
of past warming and
extreme weather
events to human activity, projections
of future warming and its effects, or potential for catastrophic changes.
But examining temperature anomalies separate from atmospheric circulation changes is dubious
science at best and blaming global warming does nothing to improve early storm warnings or accurately assess the frequency
of extreme events.
The
science of climate change «attribution» — linking specific
extreme weather
events to the effects
of global warming — is making substantial progress, so it is becoming increasingly possible for scientists to tie particular weather patterns to climate change.
Bob Ward, policy and communications Director
of the Grantham Research Institute on Climate Change and the environment at the London School
of Economics and Political
Science, claims the link between
extreme weather
events and climate change is clear, and that criticisms about the evidence for an increase in disaster losses is nothing new and is merely a repetition
of criticisms that date back to 2006 because the IPCC's procedures for reviewing scientific work is currently under the spotlight.
The report pays particular attention to
extreme events in the U.S., where the
science of event attribution has evolved significantly, especially in the aftermath
of recent
extreme events, for example, the recent California drought.
So that whole risk way
of thinking around
extreme events, I think, again, brings a new set
of challenges to climate
science that we didn't really confront before.
He was sceptical about
science that linked climate change to the increased likelihood
of extreme weather
events or bushfires.
Extreme weather attribution is however an emerging and rapidly advancing
science, and there is increasing capacity to estimate the change in magnitude and occurrence
of specific types
of extreme events in a warming world.
The Raising Risk Awareness project seeks to assess the contribution
of anthropogenic climate change and other external drivers (e.g.» El Niño») to the occurrence
of extreme weather
events in developing countries in East Africa and South East Asia, and identify how such information could help to bridge the
science - communications policy gap, and enable these countries and communities to become more climate resilient.
Since we are seeing more and more
of this type
of devastating
extreme events driven by stalled weather patterns, let's briefly review the
science.
The Project The Raising Risk Awareness project seeks to assess the role
of human - induced climate change in the risk
of extreme weather
events in developing countries and identify how such scientific evidence could help to bridge the
science - communications - policy gap, and enable these countries and communities to become more resilient in a warming world.