Green Lab’s Freezer Inventory Project: Turning a ripple of change into a wave 2025 graduate Srishti Jainapur recording the temperature on a freezer.(Image: Courtesy of Penn Climate) Green Lab’s Freezer Inventory Project: Turning a ripple of change into a wave The Freezer Inventory Project, launched in late 2023, aims to improve the efficiency of a major energy strain: ultra-low temperature freezers. 2 min. read
Doomsday Clock 2026: Scientists set new time Penn In the News CNN Doomsday Clock 2026: Scientists set new time Michael Mann of the School of Arts & Sciences comments on the Doomsday Clock. How plants ‘hedge their bets’ for better reproductive outcomes nocred How plants ‘hedge their bets’ for better reproductive outcomes Penn biologists reveal how plants respond to seasonal flowering cues while protecting the stem cells at their growing tip, enabling continuous reproduction in changing environments. 3 min. read How interdisciplinary teaching becomes climate action How interdisciplinary teaching becomes climate action Penn graduate students are learning that net zero is a systems challenge requiring fluency across disciplines, and why interdisciplinary teaching is climate action—including how it builds the human capital the clean energy transition demands. 2 min. read When will the big nor’easters return? Boston in midst of second-longest streak without hefty snowfalls. Penn In the News Boston Globe When will the big nor’easters return? Boston in midst of second-longest streak without hefty snowfalls. Research from Michael Mann of the School of Arts & Sciences shows how strong nor’easters are becoming stronger. 30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Penn In the News Philadelphia Inquirer 30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Michael Mann of the School of Arts & Sciences published a paper about warmer sea temperatures influencing snowstorms. Mia McElhatton: How climate change affects migration Fourth-year Mia McElhatton is studying the intersection of climate change and migration with an undergraduate research grant from the Andrea Mitchell Center for the Study of Democracy.nocred Mia McElhatton: How climate change affects migration Fourth-year philosophy major Mia McElhatton is investigating the effects of climate change on how people move from place to place. 2 min. read Home insurance costs are up 150% in one part of California. This map shows premiums by county Penn In the News San Francisco Chronicle Home insurance costs are up 150% in one part of California. This map shows premiums by county Benjamin Keys of the Wharton School says climate change is making insuring homes riskier and more expensive. UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Penn In the News Associated Press UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Michael Mann of the School of Arts & Sciences welcomes a recent UN climate report’s emphasis on tackling issues across governments and society. Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?” Load More
How plants ‘hedge their bets’ for better reproductive outcomes nocred How plants ‘hedge their bets’ for better reproductive outcomes Penn biologists reveal how plants respond to seasonal flowering cues while protecting the stem cells at their growing tip, enabling continuous reproduction in changing environments. 3 min. read
How interdisciplinary teaching becomes climate action How interdisciplinary teaching becomes climate action Penn graduate students are learning that net zero is a systems challenge requiring fluency across disciplines, and why interdisciplinary teaching is climate action—including how it builds the human capital the clean energy transition demands. 2 min. read
When will the big nor’easters return? Boston in midst of second-longest streak without hefty snowfalls. Penn In the News Boston Globe When will the big nor’easters return? Boston in midst of second-longest streak without hefty snowfalls. Research from Michael Mann of the School of Arts & Sciences shows how strong nor’easters are becoming stronger. 30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Penn In the News Philadelphia Inquirer 30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Michael Mann of the School of Arts & Sciences published a paper about warmer sea temperatures influencing snowstorms. Mia McElhatton: How climate change affects migration Fourth-year Mia McElhatton is studying the intersection of climate change and migration with an undergraduate research grant from the Andrea Mitchell Center for the Study of Democracy.nocred Mia McElhatton: How climate change affects migration Fourth-year philosophy major Mia McElhatton is investigating the effects of climate change on how people move from place to place. 2 min. read Home insurance costs are up 150% in one part of California. This map shows premiums by county Penn In the News San Francisco Chronicle Home insurance costs are up 150% in one part of California. This map shows premiums by county Benjamin Keys of the Wharton School says climate change is making insuring homes riskier and more expensive. UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Penn In the News Associated Press UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Michael Mann of the School of Arts & Sciences welcomes a recent UN climate report’s emphasis on tackling issues across governments and society. Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?” Load More
30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Penn In the News Philadelphia Inquirer 30.7 inches of snow fell in Philly on this week in 1996. Don’t bet against an encore some winter soon Michael Mann of the School of Arts & Sciences published a paper about warmer sea temperatures influencing snowstorms. Mia McElhatton: How climate change affects migration Fourth-year Mia McElhatton is studying the intersection of climate change and migration with an undergraduate research grant from the Andrea Mitchell Center for the Study of Democracy.nocred Mia McElhatton: How climate change affects migration Fourth-year philosophy major Mia McElhatton is investigating the effects of climate change on how people move from place to place. 2 min. read Home insurance costs are up 150% in one part of California. This map shows premiums by county Penn In the News San Francisco Chronicle Home insurance costs are up 150% in one part of California. This map shows premiums by county Benjamin Keys of the Wharton School says climate change is making insuring homes riskier and more expensive. UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Penn In the News Associated Press UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Michael Mann of the School of Arts & Sciences welcomes a recent UN climate report’s emphasis on tackling issues across governments and society. Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?” Load More
Mia McElhatton: How climate change affects migration Fourth-year Mia McElhatton is studying the intersection of climate change and migration with an undergraduate research grant from the Andrea Mitchell Center for the Study of Democracy.nocred Mia McElhatton: How climate change affects migration Fourth-year philosophy major Mia McElhatton is investigating the effects of climate change on how people move from place to place. 2 min. read
Home insurance costs are up 150% in one part of California. This map shows premiums by county Penn In the News San Francisco Chronicle Home insurance costs are up 150% in one part of California. This map shows premiums by county Benjamin Keys of the Wharton School says climate change is making insuring homes riskier and more expensive. UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Penn In the News Associated Press UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Michael Mann of the School of Arts & Sciences welcomes a recent UN climate report’s emphasis on tackling issues across governments and society. Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?” Load More
UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Penn In the News Associated Press UN says world must jointly tackle issues of climate change, pollution, biodiversity and land loss Michael Mann of the School of Arts & Sciences welcomes a recent UN climate report’s emphasis on tackling issues across governments and society. Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?”
Penn International Climate Observatory publishes 2026 Global Climate Trends Report Penn International Climate Observatory publishes 2026 Global Climate Trends Report The Global Climate Trends Report addresses the question “In the coming 12 to 60 months, what decisions and strategies enable the transition to sustainable energy systems and societal and ecological resilience?”