But it is the idea of using biochar to remove carbon dioxide from the atmosphere on a semi-permanent basis that has caused people outside the field of agriculture to take notice of the stuff.
但是用生物炭半永久性地消除大气中的二氧化碳，引起了农业界之外人们的关注。
2
But permanent dwellings came about only with the invention of agriculture and animal husbandry.