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Articles by Alina Bachmann
UN Weather Agency Sounds Alarm on Extreme Events in Antarctica
Among the events sparking concern was "freakish warming at Earth's South Pole" including "a mind-blowing" above-average reading at a research station. Scientists with the United Nations weather agency on Friday expressed fresh concern over the climate crisis following recent extreme events in Antarctica—an area they say should not be taken "for granted." "The Antarctic ice sheets hold almost 60 meters of potential sea-level rise.
Why Fires Burning Higher In The Mountains Are A Clear Sign Of Climate Change
The Western U.S. appears headed for another dangerous fire season, and a new study shows that even high mountain areas once considered too wet to burn are at increasing risk as the climate warms. Nearly two-thirds of the U.S. West is in severe to exceptional drought right now, including large parts of the Rocky Mountains, Cascades and Sierra Nevada.
3 Things I Have Learned About Climate Change During Covid
The planet had already warmed by around 1.2℃ since pre-industrial times when the World Health Organization officially declared a pandemic on March 11 2020. This began a sudden and unprecedented drop in human activity, as much of the world went into lockdown and factories stopped operating, cars kept their engines off and planes were grounded.
Will The Climate Warm As Much As Feared By Some?
Shutterstock We know the climate changes as greenhouse gas concentrations rise, but the exact amount of expected warming remains uncertain. Scientists study this in terms of “equilibrium climate sensitivity” – the temperature rise for a sustained doubling of carbon dioxide concentrations. Equilibrium climate sensitivity has long been estimated within a likely range of 1.5-4.5℃.
Will The Climate Warm As Much As Feared By Some?
Shutterstock We know the climate changes as greenhouse gas concentrations rise, but the exact amount of expected warming remains uncertain. Scientists study this in terms of “equilibrium climate sensitivity” – the temperature rise for a sustained doubling of carbon dioxide concentrations. Equilibrium climate sensitivity has long been estimated within a likely range of 1.5-4.5℃.
Methane Emissions Hit Record Breaking Levels
Global emissions of methane have reached the highest levels on record, research shows. Growth of emissions from coal mining, oil and natural gas production, cattle and sheep ranching, and landfills are primarily driving the increases. Between 2000 and 2017, levels of the potent greenhouse gas barreled up toward pathways that climate models suggest will lead to 3-4 degrees Celsius of warming before the end of this century.
What The World Was Like The Last Time Carbon Dioxide Levels Were At 400ppm
Gil.K/Shutterstock The last time global carbon dioxide levels were consistently at or above 400 parts per million (ppm) was around four million years ago during a geological period known as the Pliocene Era (between 5.3 million and 2.6 million years ago). The world was about 3℃ warmer and sea levels were higher than today. We know how much carbon dioxide the atmosphere contained in the past by studying ice cores from Greenland and Antarctica.
What An Ocean Hidden Under Antarctic Ice Reveals About Our Planet's Future Climate
Craig Stevens, Author provided Jules Verne sent his fictional submarine, the Nautilus, to the South Pole through a hidden ocean beneath a thick ice cap. Written 40 years before any explorer had reached the pole, his story was nevertheless only half fiction. There are indeed hidden ocean cavities around Antarctica, and our latest research explores how the ocean circulates underneath the continent’s ice shelves - large floating extensions of the ice on land that rise and fall with the tides.
The Last Ice Age Tells Us Why We Need To Care About A 2℃ Change In Temperature
Shutterstock The latest report from the Intergovernmental Panel on Climate Change (IPCC) states that without a substantial decrease in our use of fossil fuels, we are on track for a global average increase of 2℃ in the next few decades, with extremes of between 3 to 6℃ at higher latitudes. But 2℃ doesn’t really sound like much. Wouldn’t it just mean a few more days of summer barbeques?
Twitter Bots Have Substantial Impact On Spreading Climate Misinformation
"These findings suggest a substantial impact of mechanized bots in amplifying denialist messages about climate change, including support for Trump's withdrawal from the Paris agreement." (Image: Gage Skidmore/Flickr/cc) A quarter of climate-related tweets in the studied period—around when Trump announced plans to ditch the Paris agreement—came from bots.
CO₂ Levels And Climate Change: Is There Really A Controversy?
Michal Pech/Unsplash The relationship between atmospheric CO2 levels and climate change is often perceived as a controversial subject. While there’s no real disagreement among climate scientists – around 90% fully agree that human activity is clearly responsible for climate change – in the United States in 2016, barely 50% of the general public came to the same conclusion.
Understanding The Impacts Of Changing Arctic Storms
Dr Ola Persson and other MOSAiC scientists set up a scientific instrument in the Central Arctic Ocean. Credit: Daisy Dunne for Carbon Brief The world’s largest polar research expedition is currently underway in the Arctic. The year-long expedition, known as the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC), involves 300 researchers from 19 countries. From a ship trapped in the sea ice, scientists are taking measurements that could help to transform climate models.
Can You Predict The Future?
Can the future be predicted? Most certainly. Can anyone or anything predict the future with certainty? Probably not. But what we can do is select the possible outcomes that are most probable and then be willing and able to change when new information presents itself. So yes, we can often predict the future but it's the timing that is significant. Sounds simple, and it is, but the typical human condition is to be too firmly set in our prejudices, beliefs, and behavior.
Climate Watchdog Warns US Fracking Boom Leading to 30% Rise in Greenhouse Gas Emissions by 2025
This analysis shows that we're heading in the wrong direction and really need to slow emissions growth from the oil, gas, and petrochemical industries. A new analysis from the Environmental Integrity Project warns of the potential added greenhouse gas emissions from expansion of U.S. oil, gas, and petrochemical industries over the next five years.
Daily Weather Now Shows Climate Change’s Fingerprints
Climate researchers can now detect the fingerprint of global warming in daily weather observations at the global scale. In October 2019, weather researchers in Utah measured the lowest temperature ever recorded in the month of October in the US (excluding Alaska): -37.1°C (-34.78°F). The previous low-temperature record for October was -35°C (-31°F), and people wondered what had happened to climate change. Until now, climate researchers have said that climate is not the same thing as weather.
Fossil Fuel Production Plans Could Push Earth off a Climate Cliff
The United Nations is beginning its climate summit in Madrid. Their new report says that if all booked fossil fuel reserves are burned, it could lead to a cataclysmic rise of global temperature by 2100. Climate Change: What Everyone Needs to Know by Joseph Romm The essential primer on what will be the defining issue of our time, Climate Change: What Everyone Needs to Know® is a clear-eyed overview of the science, conflicts, and implications of our warming planet.
Where's The Proof In Science?
Looking for proof? No such thing in most research. Flickr/Paul Mazumdar, CC BY-NC As an astrophysicist, I live and breathe science. Much of what I read and hear is couched in the language of science which to outsiders can seem little more than jargon and gibberish. But one word is rarely spoken or printed in science and that word is “proof”. In fact, science has little to do with “proving” anything.
Ancient Plankton Hint At Climate To Come
The Pliocene, a geological epoch between two and five million years ago with CO2 levels similar to today, is a good analog for future climate predictions, according to a new study. The Mauna Loa Observatory in Hawaii recently recorded the highest concentration of carbon dioxide levels in human history. The last time CO2 levels surpassed 400 parts per million was during the Pliocene, when oceans surged 50 feet higher and small icecaps barely clung to the poles.
Huge Wildfires In The Arctic And Far North Send A Planetary Warning
Smoke from wildfires in Siberia drifts east toward Canada and the U.S. on July 30, 2019. NASA The planet’s far North is burning. This summer, over 600 wildfires have consumed more than 2.4 million acres of forest across Alaska. Fires are also raging in northern Canada. In Siberia, choking smoke from 13 million acres – an area nearly the size of West Virginia – is blanketing towns and cities. Fires in these places are normal.
Think It's Hot? The Human Body Is Already Close To Thermal Limits
Average global temperature from 2013 to 2017, as compared to 1951–1980 baseline. NASA’s Scientific Visualization Studio I am a scientist who researches climate hazards. I have published research on the potential for a catastrophic cyclone-heatwave combo in the global south. Yet over the past few days I have been approached by various media outlets to talk not about that hazard, but about the unfolding UK heatwave and climate change.
Deep Sea Carbon Reservoirs Once Superheated The Earth - Could It Happen Again?
Droplets rising from the Champagne vent on the ocean floor in the Mariana Islands. Fluids venting from the site contain dissolved carbon dioxide. NOAA Ocean Explorer As concern grows over human-induced climate change, many scientists are looking back through Earth’s history to events that can shed light on changes occurring today. Analyzing how the planet’s climate system has changed in the past improves our understanding of how it may behave in the future.
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