Feedbacks upon feedbacks: Rock weathering and the climate

Rock weathering may release or draw down carbon dioxide—it depends on the rock. Since the early 1980s, Earth scientists have understood that erosion and weathering of rock slowly removes CO2 from the atmosphere, regulating Earth’s climate on geological timescales. But recent studies have shown that erosion can also emit…

Apple ratchets up prices, blames the cost of memory 

Some Macs are hundreds of dollars more expensive today than yesterday.  Apple bumped its prices across much of its product lineup today, in some cases adding hundreds of dollars to the cost of a new Macintosh. An entry-level MacBook Neo that cost $599 is now $699. The formerly $1,299…

The “sad inevitability” of Europe’s heat wave

Europeans are baking under their second heat wave of the summer. Europe is in the midst of its second big heat wave of the year, and it’s breaking more records. France just recorded its hottest day ever, with temperatures exceeding 44° Celsius in some places. Around 40 people have…

IBM claims world’s first sub-1 nanometer chip technology

IBM’s nanostack transistors could boost chip performance or energy efficiency.  A new chip architecture from IBM can integrate nearly 100 billion transistors on a chip the size of a human fingernail—nearly twice the transistor density of the company’s previous generation of chip technology. The resulting improvement in chip compute…