Step 400 of the acorn methuselah. Gliders exit at 12:30 and 5:00.| Do the Math
Image by 12019 from Pixabay| Do the Math
Image by naturfreund_pics from Pixabay| Do the Math
Image by Karen .t from Pixabay| Do the Math
From Pixabay/Activedia| Do the Math
The numbers had already left impressionable marks on me, and as they swirled in my head for some months I certainly had a sense for the urgent warning they wanted me to hear. But it wasn’t until I rubbed the numbers together that the message really rang out. Then plotting the historical evolution shook me anew. I was staring at the ecological cliff we appear to be driving over.| Do the Math