It may look like a natural environment of lakes and woodlands, but it was entirely built by human labor.

VOA: special.2009.10.30

If the food environment had evolved very slowly, as it had in earlier human history, the body would have a chance to adapt.

如果食品环境演化很缓慢,像它在人类早期历史时那样,机体就有机会去适应这样的食品环境

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Professor Bartemeus says the study shows how human activities in the natural environment can change the travels of other organisms.

VOA: special.2010.03.02

Human development or natural disasters can change that environment.

VOA: special.2010.04.06

This has given rise to systemic risks affecting livelihoods, the environment as well as human and animal health."

VOA: standard.2010.02.22

Sophia says the organic movement is key to sustaining the environment and the human race.

VOA: standard.2009.12.08

President Obama says the Summit of the Americas yielded broad hemispheric agreement on the need to spur economic growth, confront security challenges like drug trafficking, promote alternative fuels, protect the environment, and ensure human rights.

VOA: standard.2009.04.19