Climate change

This investor is fighting climate change by pushing portfolios towards a net zero carbon footprint

Nili Gilbert has always enjoyed solving difficult problems. As a young girl, she spent hours poring over the mind-bending book The Lady or the Tiger? And other logic puzzles. Years later, while working as a quantitative investor, he was modeling human behavior which turned out to be a particularly difficult puzzle. Today, as Vice President […]

Climate change

Stockton teacher takes part in Climate Change Studies program pilot

STOCKTON, Calif. (KTXL) – A Stockton teacher is among a select group of California high school educators participating in a climate change pilot program. Scott Jorgensen, a teacher at Pacific Law Academy, teaches a program developed by Lawrence Livermore National Laboratory and the San Joaquin and Kern county Bureau of Education departments. He teaches the […]

Climate models

What are Earth System and Climate Models?

By US Department of Energy February 20, 2022 Earth system models and climate models are a complex integration of environmental variables used to understand our planet. Earth system models simulate how chemistry, biology, and physical forces work together. These models are similar to but much more comprehensive than global climate models. To understand Earth system […]

Climate models

Advanced ocean robots provide better global climate models

A team of researchers from the University of Gothenburg has deployed advanced ocean robots to conduct an international study of storm-watching above the waters around Antarctica. The study found that these storms cause outgassing of carbon dioxide into the atmosphere and can help experts better understand climate change and develop better global climate models. Intense […]

Climate change

Climate science: what about these colors and their link to climate change? | Opinion

Let’s take a look at some chemistry first. Don’t worry, please stick with it and there are no tests. Hydrogen is the first element of the periodic table and its atomic number is 1. It is a clear, colorless, odorless and highly combustible gas. Also of note, hydrogen is the most abundant chemical substance in […]

Climate change

IPCC reports on climate change, conclusions, significance, purpose and history of reports

History of IPCC reports The IPCC has been sounding the alarm on climate change for decades, publishing regular and comprehensive assessments that summarize the most recent research on the warming of our planet. Periodically, it also publishes special reports on topics such as land use, the ocean and the cryosphere (frozen parts of the earth) […]

Climate change

Point of View: Denial Worsens Climate Change

Mark Twain once said that “denial is not just a river in Egypt”. Twain’s quip, a joke about ignoring things, pretty much sums up most people’s thoughts on the threats posed by climate change. It’s easier not to think about it. Yet climate change is a huge problem that affects everyone in the world. Climate […]

Climate change

Where’s the vaccine against climate change? It is not so easy.

I’m sure I’m not the only one who occasionally contemplates the similarities between the current pandemic and the greatest threat we face, climate change. Much of what has happened over the past few years has plunged me into spirals of desperation for the future, horrified by political venality and lack of global cooperation, or in […]

Climate change

Africa cannot face climate change alone by Kristalina Georgieva & Félix Tshisekedi

Despite having played a negligible role in creating the climate crisis, African countries are already finding themselves paying the price. More creative and proactive forms of international support are needed to help African countries adapt and sustain progress towards broader sustainable development goals. KINSHASA – Africa hardly contributes to global warming. Its 1.4 billion inhabitants, […]

Climate change

The man who predicted climate change

In late 1966, in the sprawling computer lab of the Washington, DC office building that housed the United States Meteorological Bureau, Syukuro Manabe was waiting for a print job to finish. The stake was the fate of the planet. Manabe, who was thirty-five, had come to the United States from Japan almost a decade earlier. […]

Climate models

ORNL at AGU: Making climate models smarter

Lexie yang Exploration of spatially distributed deep learning models for global gravitational mapping New approaches developed by scientists, including ORNL’s Lexie Yang, analyze massive datasets of large-scale satellite images to more accurately map infrastructure – such as buildings and roads – in hours rather than in hours. days. Comprehensive image data is useful for stakeholders […]

Climate models

Defective climate models? The Arctic Ocean started to warm decades earlier than expected

An international group of researchers has pieced together the recent history of warming oceans at the gateway to the Arctic Ocean in a region called the Fram Strait, between Greenland and Svalbard, and found that the Arctic Ocean has been warming for a long time. longer than previous recordings suggested. Credit: Sara Giansiracusa The Arctic […]

Climate change

Climate change and mycotoxins: unraveling a complex web

With an increase in average global temperatures, thoughts are obviously turning to the impact this will have on mold growth and subsequent mycotoxin production. However, the reality is much more complex, as discussed in various studies. Factors such as carbon dioxide concentration, water stress, and extreme weather events will all impact the delicate relationship between […]

Climate models

Climate models overlook benefits of ‘warming’ CO2, says statistician

Rather than relying on models of climate change that could be the basis for extensive and costly regulations, policymakers should instead question these models, focusing on the legitimacy of their underlying assumptions. That’s what the Heritage Foundation’s chief statistician said at a recent climate change conference in Las Vegas leading up to the international summit […]

Climate change

The science everyone needs to know about climate change, in 6 graphics

Earth’s climate system is interconnected and complex, and even small changes in temperature can have big impacts With the United Nations climate conference in Scotland shining a light on climate change policies and the impact of global warming, it helps to understand what the science is showing. I am an atmospheric scientist who has worked […]

Climate models

Researcher seeks to improve climate models for future water projections

October 27, 2021Commented by Alex Smith According to a broader scientific consensus, the western part of the United States will have less water and the northeastern United States will have more due to climate change. Flavio Lehner. Image credit: Cornell University. However, how much less and how much more is mostly uncertain, posing a critical […]

Climate change

Addressing our great anxiety about climate change

I remember widespread public anxiety and depression in the 1960s and 1970s over the prospect of mutually assured destruction and a nuclear winter in the event of a global nuclear war. And today, public anxiety (“eco-anxiety”) about climate change is increasing around the world. The American Psychiatric Association recognizes that climate change is a significant […]

Climate change

Modi will “play” a crucial role for carbon credits to fight against climate change

An official confirmation of Modi’s visit has yet to be announced. India, China, Brazil and some other developing countries have strongly advocated maintaining carbon credits, which allow companies to offset their greenhouse gas emissions, as part of the Paris Agreement of 2015, an ambitious global action plan to fight climate change. The carbon market mechanism, […]

Climate change

Climate change: Need to review the US $ 100 billion climate finance commitment to developing countries

The unprecedented increase in climate-related disasters has led more than 13,000 scientists from 153 countries to sign a declaration of climate emergency, according to an article published in September 2021 in a leading biological science journal. The call for such severe action as the declaration of a climate emergency is justified by the Sixth Assessment […]

Climate change

Climate change: can cap and trade be the solution to Delhi’s pollution problem?

It cannot be denied that climate change has emerged as one of the most pressing issues of the day, with experts worrying about the future of the world as we move forward at this rate. In its publication of the Fifth Assessment Report in 2013, the Intergovernmental Panel on Climate Change of 1,300 independent scientists […]

Climate change

Nobel Prize in Physics rewards work on climate change

Three scientists were awarded the Nobel Prize in Physics on Tuesday for essential work in understanding how the Earth’s climate is changing, identifying the effect of human behavior on these changes and ultimately predicting the impact of global warming. The winners were Syukuro Manabe from Princeton University, Klaus Hasselmann from the Max Planck Institute for […]

Climate models

Nobel Prize in Physics rewards trio for contributions to climate models

Stockholm Three scientists on Tuesday won the Nobel Prize in Physics for work that brought order to apparent disorder, helping to explain and predict the complex forces of nature, including expanding our understanding of climate change. Syukuro Manabe, from Japan, and Klaus Hasselmann from Germany have been cited for their work in “physical modeling of […]

Climate change

Climate change: what ancient caves reveal about future New Zealand floods

Prehistoric deposits left in ancient New Zealand caves – like the Waipuna Cave in Waitomo – could help scientists better understand how precipitation changes as our climate warms. Photo / Supplied Scientists are looking to prehistoric clues left in New Zealand caves to predict how climate change will cause deluge in our warmer, wilder future. […]

Climate models

Scientific flaws in IPCC climate models and concealment of problems in IPCC AR6 report

The strong positive shortwave radiation anomaly since 2001 The results of the temperature simulations of the IPCC and Ollila models Earth’s energy balance showing the magnitude of the greenhouse effect The IPCC climate models ignore the sharp increase in solar radiation since 2001. The IPCC tries to cover up the violation of the physical laws […]

Climate models

Yes, a few climate models give unexpected predictions, but technology remains a powerful tool

Credit: Shutterstock The long-awaited new report from the Intergovernmental Panel on Climate Change (IPCC) is due later today. Prior to publication, a debate erupted over the computer models at the heart of global climate projections. Climate models are one of the many tools that scientists use to understand how the climate has changed in the […]

Climate models

Yes, a few climate models give unexpected predictions – but technology remains a powerful tool

The long-awaited new report from the Intergovernmental Panel on Climate Change (IPCC) is due later today. Prior to publication, a debate erupted over the computer models at the heart of global climate projections. Climate models are one of the many tools that scientists use to understand how the climate has changed in the past and […]

Climate models

Climate models have predicted extreme weather fluctuations. Can the damage be reversed?

William Brangham: Scientists have linked extreme weather fluctuations, from heat waves to torrential rains, to climate change, and these extremes are not limited to Europe. Last month, ground temperatures in the Arctic Circle reached over 100 degrees Fahrenheit. Much of the western United States is suffering from severe drought, which has provided tinder ready for […]

Climate models

New information on acid formation may help refine atmospheric and climate models

May 13, 2021 Atmospheric acidity is increasingly established by organic acids, such as formic acid and carbon dioxide. The former contributes to the development of aerosol particles as a precursor to raindrops and thus affects the pH of rainwater and cloud growth.. Diagram of the main emission sectors and primary emissions, meteorological and chemical processes, […]

Climate models

New climate models with high climate sensitivity are not plausible

A recent analysis of the latest generation of climate models – known as CMIP6 – provides a caveat on interpreting climate simulations as scientists develop more sensitive and sophisticated projections of how the Earth will react to levels. increasing amounts of carbon dioxide in the atmosphere. Researchers from Princeton University and the University of Miami […]

Climate models

The high end of climate sensitivity in new climate models considered less plausible – ScienceDaily

A recent analysis of the latest generation of climate models – known as CMIP6 – provides a caveat on interpreting climate simulations as scientists develop more sensitive and sophisticated projections of how the Earth will react to levels. increasing amounts of carbon dioxide in the atmosphere. Researchers at Princeton University and the University of Miami […]

Climate models

The past is the key to predicting the future climate – Models should be tested by simulating past climates

Past carbon dioxide concentrations (left) versus possible future emission scenarios (right): the rate of current emissions is much faster – occurring over decades – unlike geological changes, which occur over millions of years. If emissions continue unabated, carbon dioxide levels could reach or exceed values ​​associated with warm climates of the past, such as the […]

Climate models

Increased warming in latest generation of climate models likely caused by clouds

Credit: CC0 Public Domain As scientists scramble to determine why some of the latest climate models suggest the future may be hotter than previously thought, a new study says the reason is likely related to challenges simulating training and cloud evolution. The new research, published in Scientists progress, provides an overview of 39 updated models […]

Climate models

New representations of clouds make models more sensitive to carbon dioxide

As scientists work to determine why some of the latest climate models suggest the future could be warmer than previously thought, a new study indicates the reason is likely to be linked to challenges simulating the formation and l evolution of clouds. The new research, published in Scientists progress, provides an overview of 39 updated […]

Climate models

How hot will it be this century? The latest climate models suggest it could be worse than we thought

Climatologists use mathematical models to project Earth’s future in a warming world, but a group of latest models included surprisingly high values ​​for a measure called “climate sensitivity.” Climate sensitivity refers to the relationship between changes in carbon dioxide in the atmosphere and warming. High values ​​are a bad surprise. If they’re right, that means […]

Climate models

Cold air is rising – How wrong are our global climate models?

This graph illustrates the buoyancy effect of vapor, in which cold, moist air rises because it is lighter than dry air. Credit: Da Yang/UC Davis The lightness of water vapor dampens global warming in the tropics. Conventional knowledge holds that warm air rises while cold air sinks. But a study from the University of California, […]

Climate models

The latest climate models have unrealistic projections of future warming

A new study by climatologists at the University of Michigan concludes that some of the latest generation climate models may be overly sensitive to increases in carbon dioxide and therefore project unrealistic future warming. In a letter scheduled for publication April 30 in the journal Natural climate changethe researchers say projections from one of the […]

Climate models

Some of the latest climate models provide unrealistic projections of future warming

A new study by climatologists at the University of Michigan concludes that some of the latest generation climate models may be overly sensitive to increases in carbon dioxide and therefore project unrealistic future warming. In a letter scheduled for publication April 30 in the journal Natural climate change, the researchers say that projections from one […]

Climate models

Climate models predict even more warming, which concerns scientists

A handful of climate projections predict a rise in global temperatures much higher than what scientists have seen in previous models. Although the number raises concerns, some scientists hope the latest projections are outliers. A 2 degree rise in temperature could lead to rising sea levels, the death of coral reefs and dangerous water scarcity […]

Climate models

Early climate models were spot on when it came to global warming

Climate skeptics have long questioned the accuracy of computer models that predict global warming, but most early climate models turn out to be spot-on, according to a flashback from University of California climatologists at Berkeley, Massachusetts Institute of Technology and NASA. Of 17 climate models published between the early 1970s and late 2000s, 14 were […]

Climate models

Climate models have always been right, new study finds

A recent to study computer climate models dating back to the 1970s have shown them to be very accurate in relation to what actually happened over the following decades. This builds confidence in modern models that predict further changes in the future. In the 1970s, climatologists began to report the increasing amount of carbon dioxide […]

Climate models

Even 50 years ago, climate models were far more accurate than deniers claim

It’s a common refrain from those who question the findings of climate science: the computer models scientists use to project future global warming are inaccurate and shouldn’t be trusted to help policymakers decide whether to they must take potentially costly measures to limit greenhouse gas emissions. A new study effectively quells this argument by examining […]

Climate models

Climate models have understood global warming well

There’s a favorite argument among those who doubt mainstream climate science: climate models overestimate the rate at which the Earth is warming. This claim resurfaces time and time again and is often based on single instances of uncertainty or hand-picked data. Various studies have looked closely at individual climate models in recent years and have […]

Climate models

Nailed: Early climate models accurately predicted effects of global warming, study finds | The Weather Channel – Articles from The Weather Channel

This color-coded map shows global surface temperature anomalies. Temperatures above normal are shown in red and temperatures below normal are shown in blue. (NASA Goddard Space Flight Center) Of the 17 climate change models examined, 14 were accurate enough to predict the effects of global warming. The researchers fed the actual emission levels into the […]

Climate models

How successful have climate models really been in predicting the future?

A new paper by Hausfather and his colleagues (including me) has just been published with the most comprehensive assessment of climate model projections since the 1970s. Bottom line? Once you fixed the small errors in the projected overrides, they performed remarkably well. Climate models are central to our understanding of our future climate. They have […]

Climate models

Individual climate models may not provide the complete picture

UNIVERSITY PARK, Pennsylvania — Equilibrium climate sensitivity — the sensitivity of Earth’s climate to changes in atmospheric carbon dioxide — may be underestimated in individual climate models, according to a team of climatologists. “Probabilistic estimates of climate system properties often rely on comparing the model simulation with observed temperature records and an estimate of internal […]

Climate models

Climate models are not certain. So why are scientists so confident?

Katharine Hayhoe knows that climate models are not perfect. “The more you know about models, the less you trust them and the more you blow their tires,” says Dr. Hayhoe, co-director of the Climate Science Center at Texas Tech University. Why we wrote this When planning for the future, certainty can be hard to come […]

Climate models

The great failure of climate models

Computer models of the climate are at the heart of calls to ban the cheap, reliable energy that powers our thriving economy and promotes healthier, longer lives. For decades, these models have projected dramatic warming small fossil increases in atmospheric carbon dioxide concentrations, with catastrophic consequences. Yet real-world data doesn’t cooperate. They only show a […]

Climate models

Past warming events suggest climate models fail to capture true warming under business-as-usual scenarios

According to an international team of researchers from 17 countries. The results published last week in nature geoscience are based on observational evidence of three warm periods over the past 3.5 million years, when the world was 0.5°C to 2°C warmer than pre-industrial temperatures in the 19th century. The research has also revealed how large […]

Climate variability

Climate Variability and Change Focal Area

The CVC measures and models the dynamic systems of the Earth and their evolution over time. The Climate Variability and Change (CCV) focus area supports research to better understand the general state of the Earth’s climate and the physical processes that affect it. The CVC supports focused, interdisciplinary research to better describe, understand, and predict […]