The major environmental factors that increase the risk of type 2 diabetes are overnutrition and a sedentary lifestyle, with consequent overweight and obesity(39,40).

增加2型糖尿病危险的主要环境因素是营养过度和久坐的生活方式，导致身体超重和肥胖。

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Autism Speaks launched a major initiative to study environmental factors well over a year ago, but this is just a start.

一年多以前《孤独症论坛》发起了一项重大的行为来研究环境的一些因素，但是这仅仅是一个开端。

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CHARGE is the largest epidemiologic study of reliably confirmed cases of autism to date, and the first major investigation of environmental factors and gene-environment interactions in the disorder.

CHARGE是至今最大的孤独症病例流行病学研究，它的可靠性毋庸置疑。另外，它还是第一个关于环境与基因共致孤独症的科研项目。

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In its investigation of the explosion aboard a rig leased from Transocean ( RIG), which killed 11 and resulted in a major environmental disaster, BP said a variety of factors were to blame, and looked to share responsibility with it partners and contractors at the site.

FORBES: Halliburton Sues BP for Defamation, Misrepresentation