WebRT @karpathy: Obviously ppl should carry a CO2 monitor at all times :) Outside air is ~400ppm, stuffy room ~1000+. CO2 ppm is proxy for how much other people's air you're breathing (~covid risk). Thinking gets hazier at 1000+. Meeting rooms and bedrooms can climb much higher than you'd expect. 11 Apr 2024 02:27:22 Web24 mrt. 2014 · Ppmwco2 = ppmvco2 × 0.8317 × 44.01 / 10000; This is quicker than co2 / 1000000 × 0.8317 × 44.01 / 1000000. 0.8317 accounts for Henry's Law and max ppmw …
Global Carbon Dioxide: 2024-2024 - Climate Change: Vital Signs …
WebThe values provided in the other answer are actually related to the minimum values experienced by land plants in the past, not the theoretical minimum possible concentration of CO 2 capable of maintaining plant life.. According to Gerhart and Ward (2010): During the Last Glacial Maximum (LGM; 18 000–20 000 yr ago) and previous glacial periods, … Web21 mei 2013 · May 21, 2013 The global concentration of carbon dioxide in the atmosphere – the primary driver of recent climate change – has reached 400 parts per million (ppm) for the first time in recorded history, according to data from the Mauna Loa Observatory in … flagstaff wedding locations
A Graphical History of Atmospheric CO2 Levels Over Time
Web12 aug. 2024 · At the time, atmospheric CO2 concentration was at a whopping 3000 to 9000 ppm! The average temperature wasn’t much more than 10 degrees C above today’s, … Web26 jan. 2024 · In the big picture, 400 ppm is a low-to-middling concentration of CO2 for the planet Earth. Some 500 million years ago, when the number of living things in the oceans … WebOther human data: Signs of intoxication have been produced by a 30-minute exposure at 50,000 ppm [Aero 1953], and a few minutes exposure at 70,000 to 100,000 ppm produces unconsciousness [Flury and Zernik 1931]. It has been reported that submarine personnel exposed continuously at 30,000 ppm were only slightly affected, provided the oxygen … flagstaff wells fargo bank