When this precessional wobble brings the northern continents nearest the sun during the summertime, the atmosphere gets a notable boost of methane from its primary natural source—the decomposition of plant matter in wetlands.
When this precessional wobble brings the northern continents nearest the sun during the summertime, the atmosphere gets a notable boost of methane from its primary natural source—the decomposition of plant matter in wetlands.
当岁差的晃动让北半球陆地在夏季与太阳距离最近时，大气中的甲烷会明显上升；而自然界中甲烷的主要来自于湿地植物的分解作用。