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Initially it used four different emission storylines from the Special Report on Emissions Scenarios (SRES) as a scientific basis, however, recognizing the need for a more flexible and policy-relevant framework, scientists developed the Representative Concentration Pathways (RCPs) for the IPCC reports.
Albedo is the total reflection of incoming solar radiation by Earth. As industrial aerosols decreased due to this new regulation, particularly over the North Atlantic Ocean, the planetary albedo slightly decreased, which means that more incoming solar radiation was absorbed by the planet rather than reflected. What is albedo?
Climate models are the main tool climatescientists use to predict how Earth will respond to more heat-trapping pollutants in the atmosphere. But what exactly is a climate model? Lets start off easy by breaking down the phrase climate model.” What do I mean by this?
As climatescientists we tend to look at the IPCC reports a little differently than the general public might. Here are a few things that mark this report out from previous versions that relate to issues we’ve discussed here before: Extreme events are increasingly connected to climate (duh!) 1981) which can be seen here.
Warming of the surface of the Arctic is matched by a colder polar vortex high in the atmosphere, which is speeding the breakdown of the Earth’s shield against ultraviolet rays.
The energy balance of our planet , the radiation arriving and leaving, is continually monitored by a global radiation network at the surface and by dedicated satellites. And yes, also the increase in back-radiation towards the Earth surface from the CO2 greenhouse effect is a measured fact.
Last month, 44 climatescientists from 15 countries wrote an open letter to the Nordic Council of Ministers highlighting the risk of a potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a critical ocean current system in the Atlantic Ocean. What are climatescientists demanding?
Although the threats these microplastics pose to natural ecosystems are now being studied extensively, their influence on Earth’s climate is still virtually unknown. Climatescientists know that aerosols like dust, pollen, and soot will alter temperatures on Earth’s surface as they scatter and absorb sunlight. Altitude matters.
The most important problem with the sun-climate explanation is that there has been no long-term change in either solar activity or cosmic radiation over the last hundred years that can explain the global warming we are now seeing. It feels like we start from scratch again because of inexperienced and lazy newcomers.
The good news is that there are some initiatives on climate change adaptation which involve climatescientists such as the Infrastructure and Climate Network ( ICNet Global ). Such professional debates should include climatescientists, the adaptation community, and prac titioners.
Communities from Texas to Ohio that are benefiting from this scientifically informed tourism boom are the same places where some people like to question and mock climatescientists. As NASA points out on X , the temperature drop gives “a firsthand sense that the sun is a major part of Earth’s climate system.
In this, he is in violent agreement with Isaac Held, his colleague at GFDL, and indeed most climatescientists. He makes a eloquent argument for a hierarchy of modeling where simpler, functional, models can contribute a lot to understanding in advance of the more complete and more detailed versions turning up.
For example, Antarctica acts to cool our planet by reflecting solar radiation back to space by virtue of the brightness of its snow surface. The danger is that the Antarctic sea ice is starting to behave like the Arctic, with sustained loss of ocean cover and consequent absorption of solar radiation.
The correlation had been shown in a paper by an author outside the conventional scientific community, so, for good measure, Simpson added that a non-expert could not properly appreciate how atmospheric circulation affects the absorption of radiation. 139 1961 ). Magic smartphone trees: technology for a circular economy.
Allison Crimmins is the Director of the National Climate Assessment. She is a climatescientist on detail from EPA’s Office of Air and Radiation to the White House Office of Science and Technology Policy, where she is leading the fifth National Climate Assessment at the U.S. Global Change Research Program.
15 On Final Radiation Safety, NPDES Compliance Schedule Regulations; Brodhead Creek Rulemaking Petition DEP Citizens Advisory Council, Environmental Justice Advisory Board Hold Joint Meeting Nov. Million In Federal Bipartisan Infrastructure Law Funding For Abandoned Mine Reclamation Federal Office Of Surface Mining Awards PA $26.63
Altering cloud properties influences Earth’s climate On sunny days, it’s clear that clouds leave shadows on the landscape. Climatescientists are interested in clouds for exactly this reason- clouds reflect sunlight, which has a cooling effect on surface temperatures. Cirrus clouds formed this way have many, small ice crystals.
Climatescientists at the Union of Concerned Scientists (UCS) have dubbed the six-month stretch from May through October the “ Danger Season.” Not only has much of what climatescientists have been warning about come to pass, many of the extreme weather events the planet is now experiencing are worse than they expected. “To
“One key challenge is to quantify the different combinations of heat and humidity, then to link them with different health outcomes,” says Eunice Lo, a physicist-turned-climatescientist at the University of Bristol , UK.
Debate has been particularly sharp over proposed small field-research experiments – experiments that would inject small amounts of materials into the atmosphere to observe local chemical, radiative, and climate responses. Opponents of SG research have advanced a wide range of claims, of which two are credible and serious.
As it became clear that the growth in the global birth rate had peaked, Malthusian thinkers started to look to climate change as a replacement apocalypse for overpopulation and resource scarcity. The whole point of referring to Hiroshima was to raise the specter of nuclear weapons explosion. Why else use it?
Leading ClimateScientist And Author [PaEN] -- Hawk Mountain Sanctuary Recognizes Adrian Naveda As 2022 James A. 15 On Final Radiation Safety, NPDES Compliance Schedule Regulations; Brodhead Creek Rulemaking Petition [PaEN] -- DEP Citizens Advisory Council, Environmental Justice Advisory Board Hold Joint Meeting Nov. Mann, Ph.D.,
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