ľ�ϸ���Ӱ��

Birka Wicke has been researching the harmful effects of palm oil for the past ten years.

An international team of scientists led by Utrecht ľ�ϸ���Ӱ�� have found the oldest fossil remains of moths and butterflies known to date.

With a computer model, researchers were able to compare the contributions of various sources to the amount of methane in the atmosphere.