I think one of the important issues is to be
doing modelling of the climate system consequences of fully 1.5 C pathways and maybe even more than that.
Not exact matches
Darin Kingston
of d.light, whose profitable solar - powered LED lanterns simultaneously address poverty, education, air pollution / toxic fumes / health risks, energy savings, carbon footprint, and more Janine Benyus, biomimicry pioneer who finds
models in the natural world for everything from extracting water from fog (as a desert beetle
does) to construction materials (spider silk) to designing flood - resistant buildings by studying anthills in India's monsoon
climate, and shows what's possible when you invite the planet to join your design thinking team Dean Cycon, whose coffee company has not only exclusively sold organic fairly traded gourmet coffee and cocoa beans since its founding in 1993, but has funded dozens
of village - led community development projects in the lands where he sources his beans John Kremer, whose concept
of exponential growth through «biological marketing,» just as a single kernel
of corn grows into a plant bearing thousands
of new kernels, could completely change your business strategy Amory Lovins
of the Rocky Mountain Institute, who built a near - net - zero - energy luxury home back in 1983, and has developed a scientific, economically viable plan to get the entire economy off oil, coal, and nuclear and onto renewables — while keeping and even improving our high standard
of living
And now Variety comes out
of nowhere with this report where the numbers just don't seem to make sense in the current
climate, especially for ESPN for reasons already mentioned including the existing Fight Pass business
model.
You are saying, the
model says that we could run the risk at two degrees
of climate change and these are reasons why we might
do that, or you could run it at 1 % and these are the political implications.
However, the recent period
of cooling
does suggest that either manmade global warming may be smaller or that the impact
of other factors may be greater than
climate models have so far assumed.
In the Department
of Meteorology at Stockholm University (MISU), researchers have
done a series
of model simulations investigating tropical cyclone activity during an earlier warm
climate, the mid-Holocene, 6,000 years ago.
«
Models do a good job at simulating some elements
of the
climate system, but they disagree on key aspects
of the land - atmosphere CO2 exchange, and in particular the amount
of carbon being sequestered,» Rawlins said in a statement.
However, most
climate system
models have not
done a good job
of showing the relationship between permafrost and soil carbon dynamics.
Even if the near future doesn't unfold like the 2004
climate - gone - haywire film The Day After Tomorrow, scientists need to be able to produce accurate models of what abrupt change (more likely spanning hundreds or thousands or years, rather than days) would look like and why it might occur, explains Zhengyu Liu, lead author of the study and director of the University of Wisconsin — Madison's Center for Climate Re
climate - gone - haywire film The Day After Tomorrow, scientists need to be able to produce accurate
models of what abrupt change (more likely spanning hundreds or thousands or years, rather than days) would look like and why it might occur, explains Zhengyu Liu, lead author
of the study and director
of the University
of Wisconsin — Madison's Center for
Climate Re
Climate Research.
Despite that risk, current
climate models do not include the risk
of emissions from thawing permafrost, the UNEP analysis warned.
Instead
of waiting for an event to happen, the idea is to incorporate seasonal forecasts, which are
done a month or more ahead
of time, into the
climate models.
«The result is not a surprise, but if you look at the global
climate models that have been used to analyze what the planet looked like 20,000 years ago — the same
models used to predict global warming in the future — they are
doing, on average, a very good job reproducing how cold it was in Antarctica,» said first author Kurt Cuffey, a glaciologist at the University
of California, Berkeley, and professor
of geography and
of earth and planetary sciences.
Studies
of past
climates usually point to the high end
of this range, as
do climate models.
The calculations are in line with estimates from most
climate models, proving that these
models do a good job
of estimating past climatic conditions and, very likely, future conditions in an era
of climate change and global warming.
The uncertainty associated with future
climate projections linked to economic possibilities
of what people will
do is far larger than the uncertainty associated with physical
climate models.
An ethical approach to
climate change including consideration
of wealth redistribution to repay «
climate debt» is one
model for
doing this.»
«
Do [
climate models] have the right sort
of nature
of the overturning and its variability?»
«We're trying to understand how what we're
doing to the Earth's atmosphere and oceans will play out in the future,» says Bette Otto - Bliesner, who runs a full - complexity
climate model — and its 1.5 million lines
of code — through a supercomputer named Yellowstone at the National Center for Atmospheric Research in Boulder.
«One reason that we haven't appreciated the role
of aerosols in the
climate system is that many — most —
models don't include aerosol - cloud interactions,» including only a handful
of those used in IPCC's fifth assessment report, released in 2014.
The team also wanted to know whether the conditions on land interacted with the atmosphere to affect
climate, because most
of the current
climate models don't simulate the Green Sahara period well, she said.
A DRAM used by a supercomputer
doing climate modeling might read or erase data one quintillion (one million trillion) times over the course
of three or four years, Williams says.
The impact
of these results is wide - reaching, and Dr Pullen suggests that it may even change how we think about global
climate data: «Climate models need to incorporate genetic elements because at present most do not, and their predictions would be much improved with a better understanding of plant carbon demand.
climate data: «
Climate models need to incorporate genetic elements because at present most do not, and their predictions would be much improved with a better understanding of plant carbon demand.
Climate models need to incorporate genetic elements because at present most
do not, and their predictions would be much improved with a better understanding
of plant carbon demand.»
Sixteen other
climate models did a poorer job
of this.
They
did so by adding the extra emissions to an existing
model used in the UK government's 2006 Stern Review, designed to assess the economic cost
of coping with
climate change between now and 2200.
«Most
modeling studies that look at the impact
of climate change on crop yield and the fate
of agriculture don't take into account whether the water available for irrigation will change,» Monier says.
He emphasized the importance
of looking further into the future with
climate models, something that isn't often
done because
of the computational resources such
modeling requires.
«Our
model can help predict if forests are at risk
of desertification or other
climate change - related processes and identify what can be
done to conserve these systems,» he said.
The new
modeling, conducted by the Washington, D.C. — based nonprofit group
Climate Interactive, assumes annual emissions will remain flat for the remainder
of the century after 2025 to 2030; nations will neither
do more to clamp down on annual emissions, nor allow them to rise.
«Most
climate models that incorporate vegetation are built on short - term observations, for example
of photosynthesis, but they are used to predict long - term events,» said Bond - Lamberty, who works at the Joint Global Change Research Institute, a collaboration between PNNL and the University
of Maryland in College Park, Md. «We need to understand forests in the long term, but forests change slowly and researchers don't live that long.»
That's basic physics and chemistry and people who claim that they don't believe that, they don't believe we're warming the planet through increasing CO2 levels because
of climate models, they don't understand the fact that you don't need a
climate model to come to that conclusion.
For instance, the
models did not tie the record Colorado floods after five days
of heavy rainfall in September 2013 to
climate change (ClimateWire, Oct. 30, 2013).
In
climate science, for example, where we don't need an elaborate
climate model to understand the basic physics and chemistry
of greenhouse gases, so at some level the fact that increased CO2 warms the planet is a consequence
of very basic physics and chemistry.
The global
climate models do a good job
of simulating the process
of sea ice formation over large areas in the open ocean.
While this underestimate
does not call into question the response
of climate to carbon dioxide concentration in the IPCC
models, the researchers say, it
does suggest that a better understanding
of what happened during the last 50 years could improve projections
of future ecosystem changes.
Isaac Held, a National Oceanic and Atmospheric Administration
climate scientist, said he agreed with the researchers about the «the importance
of getting the ice - liquid ratio in mixed - phase clouds right,» but he doesn't agree that global
climate models generally underestimate
climate sensitivity.
On the other hand, statistical analysis
of the past century's hurricanes and computer
modeling of a warmer
climate, nudged along by greenhouse gases,
does indicate that rising ocean temperatures could fuel hurricanes that are more intense.
The researchers found
climate models that show a low global temperature response to carbon dioxide
do not include enough
of this lower - level water vapour process.
Climate models do not predict an even warming
of the whole planet: changes in wind patterns and ocean currents can change the way heat is distributed, leading to some parts warming much faster than average, while a few may cool, at least at first.
However, unlike the
climate model simulations, the new precipitation reconstruction
does not show an increase
of wet and dry anomalies in the twentieth century compared to the natural variations
of the past millennium.
When the researchers compared their results with the output
of a number
of climate models, they found that several
of the newer
models that have higher resolution and use updated ice sheet configurations
do «a very good job»
of reproducing the patterns observed in the proxy records.
Current
climate models do not take into account glacial flow and therefore underestimate the impact
of glacial melt and the calving
of ice flows, the researchers argue in a paper detailing the findings in today's Science.
Defining an extreme El Niño as one with a massive reorganisation
of rainfall, where the usually dry regions in South America experience a tenfold increase in rain, they found that
climate models do agree after all.
But there, challenges also arise, as
models that simulate changing
climate at a global scale
do so at relatively coarse resolution,
of around hundreds
of kilometers, while hurricanes require resolutions
of a few kilometers.
In fact, Salmon doesn't think that the National Science Foundation (NSF) should be funding her research on tea as a
model system for understanding how a warming
climate is putting stress on specialty crops and the impact
of those changes on farmers.
He and his team
modelled Earth's
climate, and found that adding large quantities
of CO2 to the atmosphere — far more even than what we're
doing now — could also heat the planet until it leaks water.
«We don't trust
climate models yet to predict specific episodes
of extreme weather because the
models are too coarse,» said study co-author Dim Coumou
of PIK.
The consequences
of global sea level rise could be even scarier than the worst - case scenarios predicted by the dominant
climate models, which don't fully account for the fast breakup
of ice sheets and glaciers, NASA scientists said today (Aug. 26) at a press briefing.
«I've been
doing some Bali simulations with the U.K. Met office
climate model as «what ifs», and also some geo - engineering simulations,» said Jim Haywood, professor
of atmospheric science at the University
of Exeter.
One challenge with storms in Germany is that
climate models have trouble accurately depicting such small - scale features, but a new generation
of models that should come into wider use within the next year or two
do a much better job, meaning that attribution analyses on such events should become more feasible, van Oldenborgh said.
«That assumption is so far entrenched in our thinking that global
climate models simply don't allow for methane production in the presence
of oxygen.