Between 1960 and 1990, some scientist believe, the amount of solar radiation reaching Earth's surface may have declined as much as 10%—and in some places, Hong Kong, for example, more than 35%.
Between 1960 and 1990, some scientist believe, the amount of solar radiation reaching Earth's surface may have declined as much as 10%—and in some places, Hong Kong, for example, more than 35%.
部分科学家相信，在1960至1990年其间，太阳照到地球表面的光有可能减少了10％——而在某些地区，比如说香港，则可能超过了35％。