Translating data into adaptation: Building urban heat resilience with Eleni Myrivili, Europe’s first Chief Heat Officer

Extreme heat is the most costly of all extreme weather phenomena, both in terms of its impact on human health and wellbeing, as well as its economic impact. In this episode we talk with Eleni Myrivili, Chief Heat Officer for the City of Athens, and Senior Advisor for the Atlantic Council, about the ways data is being used to build urban resilience in the face of extreme heat events caused by climate change.

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Behind the Stripes: Communicating climate science and using data to build resilience with Professor Ed Hawkins and Lead Scientist Dr. Robert Rohde

In celebration of Earth Day 2022, Data Points is thrilled to welcome climate stripes creator Professor Ed Hawkins for a conversation with Berkeley Earth Lead Scientist Dr. Robert Rohde about the importance of making climate science accessible, the ongoing efforts to “rescue” historic climate data, and why filling the gaps in the historical climate record is essential to crafting future adaptive strategies. 

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2021 Nobel Prize Recognizes Foundational Work in Climate Science Ahead of COP26 Climate Conference

The awards, announced by the Royal Swedish Academy of Sciences on Tuesday, October 5th, recognized the three scientists for their individual work, the combined effect of which, “provided groundbreaking contributions to our understanding of complex systems,” leading to greater understanding of the complex interactions of physical phenomena involved in global warming and climate change.

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Data Points Podcast: IPCC Report Q&A With Berkeley Earth Climate Scientists

This week marked the publication of the much anticipated IPCC Working Group I Report, a global, multi-year effort on the part of more than 200 scientists worldwide to describe the physical science underlying the current state of climate change and global warming.  In this episode of Data Points, Berkeley Earth Lead Scientist Dr. Robert Rohde and […]

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Now Available: The IPCC’s Sixth Assessment Working Group I Report

On Monday, August 9th, the UN’s Intergovernmental Panel on Climate Change (IPCC) published the AR6 Climate Change 2021: The Physical Science Basis report, outlining the contributions of the IPCC’s Working Group I to the Sixth Assessment Report (AR6). Click here to download the full report. The Working Group I report outlines and summarizes the findings […]

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Data Points Podcast: A conversation with radiologist Dr. Vineet Khanna

In April of 2021, Berkeley Earth’s air quality data was featured in National Geographic’s cover story which called air pollution the next global health pandemic, drawing attention to the nearly 4 million annual deaths attributed to poor air quality worldwide. To mark the official launch of Berkeley Earth’s new podcast Data Points, we sit down […]

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Data Points Podcast: A conversation with In This Together’s Bill Shireman

Berkeley Earth is honored to have our independent climate science featured this week by In This Together, a grassroots coalition of Democrats, Republicans, and independents working to put environmental protection and energy innovation policies first by supporting bipartisan policies, leaders, partner organizations and most importantly, the individual voter. In keeping with our core mission of […]

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The Pacific Northwest Heatwave in Context

Beginning on June 26th, and lasting for the better part of a week, a massive “heat dome” settled across the Pacific Northwest, creating some of the most extreme heat conditions ever observed in North America. With record-setting temperatures upwards of 40 degrees Celsius above average, this heatwave generated significant global media coverage. Below, Berkeley Earth […]

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Berkeley Earth In Conversation With Radiologist Dr. Vineet Khanna

Air pollution is one of the defining health challenges of our time, accounting for an estimated four million annual deaths worldwide. In this episode of Data Points, Berkeley Earth’s new podcast series, we sit down with Radiologist Dr. Vineet Khanna to discuss the data behind the troubling rise in air pollution-related diseases, and his new paper calling for enhanced lung cancer screening protocols for patients with significant air pollution exposure.

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Berkeley Earth’s 2020 Global Temperature Report Reaches Over 380M Worldwide

Berkeley Earth released our annual Global Temperature Report for 2020, including findings that 2020 was the second warmest year on record. Thanks to our partners in the media, the independent research, data, and findings we presented in this report have reached an audience of nearly 400 million worldwide. One highlight of our impact: Berkeley Earth’s […]

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Press Release: Berkeley Earth 2020 Global Temperature Update

Berkeley Earth Global Temperature Update: 2020 Was Second Warmest Year Since 1850 Berkeley, Calif. — Berkeley Earth today released its Global Temperature Report for 2020, concluding that the year was nominally the second warmest on Earth since 1850 based on land and ocean data. Globally, 2020 was slightly cooler than and nearly tied with 2016. […]

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Press Release: 2021 was Warmest Year on Record for 1.8 Billion People

BERKELEY, CA — Berkeley Earth today released its annual report on global mean temperature, concluding that while 2021 was significantly colder than 2020, it was nominally the sixth warmest year on Earth since 1850, 1.2 degrees Celsius (2.2F) above the 1850 to 1900 average. Given the uncertainties associated with temperature measurements, the years 2015, 2018, […]

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Berkeley Earth Publishes Detailed Methodology in New Paper

While our fully open-source surface temperature datasets have been publicly available for some time, this paper represents the first time our complete detailed methodology has been formally published. The paper specifically includes discussion of Berkeley Earth’s treatment of air temperature in the Arctic region, and provides visualization of the global warming trends suggested by Berkeley Earth’s dataset vs. other global temperature records.

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Nuclear Waste Needs to Be Part of the Conversation on Climate Change

Congratulations are in order for Berkeley Earth’s sister organization Deep Isolation, who announced today the closing of a $20m Series A funding round, led by nuclear industry leaders NAC International. Founded by Berkeley Earth Co-Founder and President Elizabeth Muller, Deep Isolation is developing a patented process to safely dispose of nuclear waste, a major issue […]

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The Role of Air Pollution Data in West Coast Firestorm

An earlier version of this article originally appeared on the Asthma Allergies Children website. By Liz Muller As I write this white ash is visible in the polluted San Francisco Bay Area air, wafting down from a smoky orange sky and into our lungs, a dangerous byproduct of wildfires burning more than 3 million acres […]

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Global Temperature Report for 2019

Berkeley Earth, a California-based non-profit research organization, has been preparing independent analyses of global mean temperature changes since 2013. The following is our report on global mean temperature during 2019. We conclude that 2019 was the second warmest year on Earth since 1850. The global mean temperature in 2019 was colder than 2016, but warmer […]

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Horrific air pollution in Europe

Horrific Air Pollution in Europe Reaches 7 cigarettes per day equivalent, a pack a day in India and China It’s winter, and that’s the worst air pollution period for Europe and China. The levels over much of the continent are in the unhealthy range. In the figure we show a map of the pollution of […]

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A second half dip, but 2016 hottest on record

2016 was the warmest year since humans began keeping records, by a wide margin. Global average temperatures were extremely hot in the first few months of the year, pushed up by a large El Nino event. Global surface temperatures dropped in the second half of 2016, yet still show a continuation of global warming. The […]

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Coal in China: Estimating Deaths per GW-year

by Zeke Hausfather Air pollution in China is a critical global health problem, responsible for somewhere between 700,000 and 2.2 million premature deaths annually. The largest single contributor to air pollution-related mortality is particulate matter below 2.5 microns in size, or PM2.5. Exposure to PM2.5 has been found to increase the risk of heart attacks, […]

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SimMod: A simple python based climate model

by: Zeke Hausfather, Berkeley Earth zeke@berkeleyearth.org The relationship between greenhouse gas (GHG) emissions and future warming is complex, depending on the atmospheric lifetime of gases, their radiative forcing, and the thermal inertia of the Earth, particularly our oceans. Many non-CO2 GHGs have shorter atmospheric lifetimes, and the global warming-equivalent values commonly used for analysis of emission […]

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Fort McMurray Fires

On May 1, 2016, a fire began southwest of Fort McMurray,  Canada. It swept through the community destroying over 2000 structures. You can read about the latest developments here. Since 2014 Berkeley Earth has been expanding its real time database of air pollution. Our original focus was on China, but we have continued to add other regions of […]

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Air Pollution and Cigarette Equivalence

by Richard A. Muller and Elizabeth A. Muller For many people, comparing air pollution to cigarette smoking is more vivid and meaningful than is citing the numbers of yearly deaths. When we published our scientific paper on air pollution in China in August 20151, we were surprised by the attention we got for a quick […]

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Nature Not NOAA Ended the Slowdown
in Temperatures

By Zeke Hausfather In recent weeks we’ve seen a political controversy over NOAA’s adjustments to temperature records, with accusations from some in congress that records are being changed to eliminate a recent slowdown in warming and to lend support to Obama administration climate policies. This makes it sound like the NOAA record is something of […]

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3 Packs a day: Killer Air in Shenyang

Earlier this month the Shenyang EPA reported the worse levels of air pollution since record keeping began: Estimates varied between 1000 and 1400 micrograms per cubic meter of PM2.5— the fine particulate matter that has deadly health consequences. The US embassy in Shenyang reported “off the chart” recordings. In our recent study in PLOS on […]

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Berkeley Earth Temperature Update

Over the past few days we have been publishing the first major update of our data since early 2015. The data can be found here on our data page. Given the time of year and the wide ranging discussion about whether or not 2014 was a record year, it seemed a good time to asses […]

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Killer Air: Comparing models and data

As the AP  reports  Lelieveld has published a paper in Nature  on the mortality associated with outdoor air pollution that  confirms what BerkeleyEarth found in its study of air pollution in China. By their estimate   ~1.357M deaths in China are caused by air pollution. By our estimate there are ~1.6 Million deaths per year in China […]

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PM2.5: A Tale of Two Days

In our study of air pollution in China, we stumbled upon two extraordinary days.  The first, which we initially thought was a fluke, turned out to be a single day when air pollution across China was more extensive than we had seen in a years worth of data.  It was a mystery until  lead scientist, […]

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Whither the pause? NOAA report shows no recent slowdown in warming

Mountains of ink have been spilled in recent years on whether or not global warming has paused or slowed down. We’ve discussed it extensively in the past, and numerous studies have examined whether the apparent pause might have been caused by additional ocean heat uptake, small volcanoes, a weak solar cycle, poor arctic coverage in existing datasets, and\or a […]

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Understanding Adjustments to
Temperature Data

There has been much discussion of temperature adjustment of late in both climate blogs and in the media, but not much background on what specific adjustments are being made, why they are being made, and what effects they have. Adjustments have a big effect on temperature trends in the U.S., and a modest effect on […]

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