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？

youdao

The terms "global warming" and "climate change" are used by many, seemingly interchangeably.

“全球变暖”和“气候变化”这两个术语被许多人使用。这两个词似乎可以替换使用。

youdao

For example. the language and polls expert Frank Luntz wrote a memo encouraging the use of "climate change" because the phrase sounded less scary than "global warming," reported the Guardian.

例如，据《卫报》报道，语言和民调专家弗兰克·伦茨写了一份备忘录，鼓励使用“气候变化”这个词，因为这个词听起来没有“全球变暖”那么可怕。

youdao

Swan is optimistic that humans can take the necessary collective steps to address climate change and put the brakes on global warming.

VOA: standard.2009.12.10

"That's when I sat back and said, I just started a conversation about global warming and climate change and the parts per million of CO2 in our atmosphere on a NASCAR forum, " she said.

CNN: She's racing to save the environment

No-one is denying that, if managed properly, biofuels such as ethanol can offer very subsatial benefits, and have a significant role to play in the battle against global warming and climate change.

CNN: Biofuel: Green savior or red herring?

Fifty-three percent of likely voters said they believe that global climate change and warming is a legitimate problem.

FORBES: The Way We'll Be