Holdren said the power of humans to change the environment is far greater than their understanding of the impacts.

霍尔德伦说，人类改变环境的力量远远大于他们对影响的理解。

" The hubris is in imagining that we are in control, " said former U.S. White House science adviser John Holdren.

美国前白宫科学顾问约翰·霍尔德伦说：“狂妄自大在于想象我们在掌控一切。”

Beyond the domino effect, Mr. Holdren, who is now a professor at Harvard's Kennedy School, said there were other immediate costs to what he called " the squandering of U.S. leadership on an acute global issue."

除了多米诺骨牌效应之外，现任哈佛大学肯尼迪学院教授的霍尔顿先生，还说，他所谓的“在面对严峻的全球问题时美国领导层还会因为采取了挥霍态度”付出更多的直接代价。