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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. The Earth’s climate system does not like imbalances in heat!
The reason why 2016 was so warm was because of a strong El Nio eventa naturally-occurring cycle in the Earths climate systemwhich typically leads to a spike in Earths global-mean temperature. where 30,000-plus scientists gathered to present their latest research. Albedo is the total reflection of incoming solar radiation by Earth.
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 causes a circulation? temperature, rainfall, etc.)
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.
Tiny particles of plastic in the atmosphere can affect Earth’s climate, according to Laura Revell at the University of Canterbury in New Zealand and colleagues. Although the threats these microplastics pose to natural ecosystems are now being studied extensively, their influence on Earth’s climate is still virtually unknown.
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.
are used all over the world, based on calculations that quantify the effects of physical mechanisms and the way different parts of the atmosphere are connected to each other. The physics-based models describe how energy flows through the atmosphere and ocean, as well as how the forces from different air masses push against each other.
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.
I hope we can collectively reckon with another terrifyingly awesome atmospheric event: the hottest year. 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 one writer put it on X.
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.
Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.
In this, he is in violent agreement with Isaac Held, his colleague at GFDL, and indeed most climatescientists. The key aspects were the inclusion of water vapour feedback as temperatures increased, and the use of ‘convective adjustment’ to maintain stability of the lower atmospheric column. 1975) , and Bryan et al.
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. Image: Prof.
Proponents claim the process will replicate phytoplankton fertilization by iron-rich dust blown into the oceans during ice ages, and that it will help limit climate change through several mechanisms – most prominently by oxidizing atmospheric methane.
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. One was Eunice Foote , a 19th-century American scientist. 139 1961 ).
As air sunk through the atmosphere, it got squeezed and heated. 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. Courtesy: Canadian Press/Shutterstock).
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. That talk helped the [National Center for Atmospheric Research] scientists to see the big picture clearly and early on.”
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