Answers

Short answer: No — but some effects are already locked in, and the window to avoid the worst outcomes is closing fast. Climate science draws a distinction between two different things people mean when they say "climate change": 1. Some changes are already irreversible — on human timescales The effects of human activities on Earth's climate to date are irreversible on the timescale of humans al

A summary of the most prominent national and international news stories dominating headlines today includes several major developments: 1. Oregon Elementary School Shooting Tragedy struck the community of Bend, Oregon, on Thursday afternoon when a 16-year-old gunman opened fire at Silver Rail Elementary School. The shooter entered the school by shooting through a locked door and killed three chi

Whether it is "too late" to reverse climate change depends entirely on how you define the word reverse. The scientific consensus from the Intergovernmental Panel on Climate Change (IPCC) provides a clear, dual-part answer: We cannot completely reverse some of the damage already done, but it is absolutely not too late to stop further warming and avoid the most catastrophic consequences. --- 1.

There is no objective "should"—it is a value judgment involving trade-offs between equity (fairness, inequality reduction, ability-to-pay), efficiency (incentives for work, saving, investment, and growth), revenue needs, administrative feasibility, and political philosophy. Different people weigh these differently. The U.S. (the most common focus of this debate) already has a progressive federal i

There is no single objective “should”—it depends on values (fairness vs. growth incentives), goals (revenue, inequality reduction, efficiency), design details, and empirical trade-offs. The question is primarily about the U.S. (the most-discussed case), where the federal income tax is progressive overall, but effective rates flatten or dip at the extreme top due to how capital income is treated. H