Morrison Government and old grey people and cultures using more green house gases. A dubious story on carbon recapture by bacteria which failed to explain why you would not simply use plants. The use of tools by chimps is indeed and interesting insight discussion as to why we were so boring for 2 000 000 years in making the same tool over and over. There is the speculative Chinese super material MP4 recording     MP3 recording -- -- Your browser does not support the audio element.