环保科学家 meaning in English

conservation scientist
farm manager

But the jury is still out . there ' s not much evidence to weigh notes jane rissler of the union of concerned scientists . this issue of nontarget effects is just a black hole and epa has very little good data at this point to conclude whether the monarch butterfly problem is real particularly in the long term
“证据根本就不够， ”环保科学家协会的瑞斯乐指出， “基改作物对非目标生物的影响这个问题根本就是个黑洞，环保署目前握有的数据太少，根本无法判断大桦斑蝶的问题是否严重，更遑论长期的评估。 ”