Two Columbia University safety officers were injured and at least three individuals were arrested on Wednesday after approximately 100 pro-Palestinian protesters forced their way into the campus library in what university officials described as "actions that are outrageous." Pro-Palestinian demonstrators occupied Columbia University’s Butler Library ahead of final exams, staging a sit-in during the school’s designated study days. The group, some of whom officials believe are not affiliated with the university, forced their way into the building, injuring two public safety officers during a crowd surge. Acting President Claire Shipman condemned the actions as "outrageous" and noted that individuals locked inside Room 301 refused to identify themselves or comply with requests to leave. The university subsequently requested NYPD assistance to secure the area, leading to the arrest of more than three dozen protesters. Mayor Eric Adams reiterated the city’s support for peaceful protest but warned against lawlessness. The demonstration is part of a broader campaign that began in April with the Gaza Solidarity Encampment, calling for Columbia to divest from companies linked to Israel—a movement that has led to multiple building occupations and hundreds of arrests. Republican Concedes to Democrat in North Carolina Supreme Court 2024 Race. After a six-month effort to challenge the election outcome, the Republican candidate for North Carolina's Supreme Court conceded on Wednesday, formally ending his bid to overturn the result against the Democratic victor. Microsoft Researchers Quantify Environmental Impact of Liquid Cooling Technology in Nature Publication
As next-generation technologies like large language models and generative AI demand ever-larger data centers, their environmental impact is drawing growing concern. In a groundbreaking study published in Nature, Microsoft researchers have quantified the environmental benefits of liquid cooling technologies for cloud data centers, highlighting their potential to significantly reduce greenhouse gas emissions, energy consumption, and water usage.
Analyzing cold plate, single-phase immersion, and two-phase immersion cooling methods, the study showed that these systems can cut greenhouse gas emissions by 13% to 21%, energy use by up to 20%, and water consumption by as much as 82%, when compared to traditional air cooling. The findings suggest that when combined with 100% renewable energy, water savings increase by an additional 13% to 48%.
Each cooling method has distinct advantages. Cold plate cooling, which involves direct chip cooling using liquid-cooled metal plates, offers straightforward retrofitting potential. Single-phase immersion cooling, though requiring hydrocarbon oils, delivers strong sustainability performance with lower system complexity. Two-phase immersion provides the highest efficiency but relies on PFAS-based fluids, which face regulatory scrutiny for their environmental persistence.
The research emphasizes that liquid cooling not only improves efficiency and reduces costs but also supports high-density infrastructure critical for intensive AI workloads. Microsoft calls for comprehensive lifecycle assessments—including environmental, health, and safety analyses—when selecting a cooling method to ensure sustainable data center operations.
Ultimately, Microsoft researchers assert that all three liquid cooling techniques present viable, scalable solutions and will be essential in achieving emissions reduction targets while meeting surging computational demands.