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Thu, Dec 26, 2024 11:44 AM All times are UTC

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Kelly R. MacGregor

Professor of Geology, Macalester College
As a geomorphologist, I study the forces that shape the physical surface of our planet. I measure active processes in the field (such as glacier motion, subglacial erosion, water velocity, and sediment transport), and use these data to constrain numerical models of landscape evolution over geologic timescales. My current research focuses on understanding the role of glaciers in shaping alpine landscapes. I use tools such as GPS to understand how glaciers behave over daily to annual timescales, and numerical models to examine their role in creating the fantastic mountainous landscapes we see today. In addition to my work on glaciers, I am interested in the effects of dams on sediment and water transport in river systems. By looking at historical data and making measurements of current river dynamics, we can quantify changes in sediment transport, which has important implications for riparian habitats over time. I teach a wide range of classes, including Geomorphology, Rivers and the Environment, Environmental Geology, History and Evolution of the Earth, and Glaciers and Climate.

Why does everything look flat even though the Earth is round?

Nov 12, 2024 04:47 am UTC| Insights & Views Science

Ever since the ancient Greeks first made observations of the circular Moon and the skies, scientists have known that the Earth is a sphere. Weve all seen beautiful images of the Earth from space, some photographed by...

Economy

BYD Contractor Rejects 'Slavery-like Conditions' Accusations in Brazil as Labor Controversy Deepens

Jinjiang Group, a contractor for BYD, has denied accusations of mistreatment at a Brazilian EV factory, calling them baseless and pointing to cultural misunderstandings as tensions grow over worker rights. Jinjiang Denies...

Japan Airlines Faces Cyberattack Disruption with Over 60 Delayed Flights and Canceled Domestic Routes

Japan Airlines experienced significant disruptions on Thursday as a cyberattack led to over 60 flight delays, including 11 international routes, and two domestic cancellations. The airline quickly resolved the network...

Canada Stocks Gain as Clean Tech and Energy Lead S&P/TSX Composite to 0.40% Rise

Canadian stocks closed higher Wednesday as the SP/TSX Composite rose 0.40%, buoyed by strong performances in Clean Technology, IT, and Energy sectors. BlackBerry reached a 52-week high, while Telus fell to a five-year low....

Spanish Stocks Climb as IBEX 35 Sees Gains in Construction, Telecom, and Petrochemical Sectors

Spains IBEX 35 closed 0.33% higher on Wednesday, led by robust performances in construction and telecom stocks. Sacyr SA rose nearly 2%, while Solaria Energia hit its lowest in three years. Construction and Chemical...

China Approves New VAT Law Effective 2026 to Boost Key Sectors and Economic Recovery

China has passed a comprehensive value-added tax law, effective in January 2026, consolidating regulations and offering targeted exemptions for sectors like agriculture, research, and welfare institutions. The reform aims...

Politics

How will Donald Trump manage the transition between administrations?

As Donald Trump prepares to take office as the 47th President of the United States, the transition between administrations is under intense scrutiny. Trumps team has promised a seamless handover, but the highly polarized...

What is Donald Trump’s approach to dealing with past political controversies during his presidency?

Donald Trumps strategy for tackling past political controversies as he steps into his second term has become a central topic of national discourse. The former president, known for his unconventional approach to politics,...

How will Donald Trump restore confidence in his leadership in 2025?

Donald Trumps return to the Oval Office in 2025 has sparked widespread discussion about his plans to restore confidence in his leadership after a contentious first term and a polarizing election victory. With promises of...

What are Donald Trump’s immediate executive actions planned for January 2025?

Donald Trump is poised to enact several immediate executive actions upon his return to the White House in January 2025. The president-elect has made clear his intentions to reverse key Biden administration policies while...

How is Donald Trump preparing for his 2025 inauguration ceremony?

Donald Trump is reportedly planning a grand and highly publicized inauguration ceremony as he prepares to take office as the 47th president of the United States. The event, scheduled for January 20, 2025, is expected to...

Science

Public Health Experts Warn of ‘Quad-Demic’ as Flu, COVID, RSV, and Norovirus Threaten Winter Surge

Public health experts are raising alarms over a potential quad-demic this winter, with flu, COVID-19, respiratory syncytial virus (RSV), and norovirus all expected to surge simultaneously. This unprecedented convergence of...

Philippines' 'Missile Acquisition' Plan Provokes China's 'Arms Race' Warning

The Philippines has announced plans to acquire the U.S.-developed Typhon missile system to bolster its maritime defense capabilities. This decision has elicited strong reactions from China, which warns that such a move...

Christmas Eve Asteroid' to Skim Past Earth at 14,743 mph Tonight, NASA Warns

NASA has announced that an asteroid, comparable in size to a 10-story building, will make a close approach to Earth on Christmas Eve. The space rock, designated 2003 SD220, is expected to pass by our planet at a speed of...

Emergency Declared as Bird Flu 'Spreads' to California Dairy Cows

California Governor Gavin Newsom has officially declared a state of emergency in response to the rapidly escalating bird flu outbreak. The declaration comes after avian influenza was detected in dairy cows, a rare and...

Missing Radioactive Material in New Jersey Sparks Panic — Are Drones ‘Hunting for It’?

A small amount of radioactive material went missing in New Jersey earlier this month, raising concerns over public safety and potential security risks. The U.S. Nuclear Regulatory Commission (NRC) confirmed on December 2,...

Technology

Nintendo Switch 2 Reveal Rumors Explode as Countdown Ending January 8 Fuels New Leaks

Nintendo Switch 2 speculation reaches new heights with a countdown set for January 8 and leaked dock images circulating online. Fans are eager but cautious as the buzz around the anticipated reveal grows. Weibo Leaker...

Sam Altman Says Superintelligence Will Ignite a 10X Boom in AI Breakthroughs Transforming the Future of Innovation

Sam Altman envisions a world where superintelligence propels AI innovation 10x faster than expected, transforming global progress and redefining humanitys future. Early Arrival of AGI Sparks Debate The most noteworthy is...

South Korea Eyes $13.9 Billion KSMC Project to Outpace TSMC and Reinvent Semiconductor Innovation

South Korea is developing KSMC with a $13.9 billion investment to challenge TSMC and foster innovation across its semiconductor ecosystem. KSMC Proposal Aims to Strengthen South Koreas Semiconductor Sector Korea...

Microsoft Steps Back from OpenAI Dependency in 365 Copilot with New AI Models Integration Strategy

Microsoft is reshaping its AI strategy for 365 Copilot by integrating in-house and third-party models, easing its reliance on OpenAI due to cost and speed concerns for enterprise users, according to sources. Microsoft...

BYD Factory in Brazil Faces Investigation as Chinese Workers Found in 'Slavery-like Conditions'

Brazilian officials discovered 163 Chinese workers in slavery-like conditions at a BYD factory construction site in Bahia. Workers faced withheld passports, long hours, and unsafe environments, sparking an ongoing...