Why did politicians use the two terms "global warming" and "climate change"?

为什么政治家们要用“全球变暖”和“气候变化”这两个术语？

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Summer homes, European travel, BMWs — the locations, place names and name brands may change, but such items do not seem less in demand today than a decade or two years ago.

消夏别墅、欧洲旅行、宝马车——地点、地名和品牌也许会有变化，但这类东西在今天被人渴求的程度似乎也不会亚于一二十年前。

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He studied more than two hundred echidna shelters to understand where they like to hide and how often they change homes.

VOA: special.2009.07.07

So, let's change our graph where we now have this zero point set as the two individuals hydrogen atoms, and then we see that our h 2 molecule is at the negative of the dissociation energy, or the negative what that bond strength is.

那么让我们把曲线图中的零点能改到,两个分离的氢原子处，那我们就会看到,氢分子就是负的离解能，或者负的键的强度。

麻省理工公开课 - 化学原理课程节选

Land development and agriculture are just two uses of natural resources that change and destroy environments that birds need.

VOA: special.2009.05.12

Along with the spots there will be 11 celebrity endorsements by the likes of Enrique Iglesias and Shaggy, two documentaries about climate change and an eco-friendly episode of Pimp My Ride in which a '65 Chevy Impala gets an 800-horsepower diesel engine that runs on biodiesel.

FORBES: MTV's Green Crusade

The referendum choices include two options for change and one to maintain the status quo.

BBC: Jersey referendum taxpayers' money request

The choices include two options for change and one to maintain the status quo.

BBC: Jersey voters urged to register before reform referendum