Changes

==Controversy==

==Controversy==

{{main:Global Warming Controversy}}

{{main|Global Warming Controversy}}

Since 1989, advocates have clashed on the issue of whether human beings are more responsible than nature for  modern periods of global warming; see "[[greenhouse warming]]" and [[global warming theory]].<ref>Some people predicted "global warming," which has come to mean extreme [[greenhouse warming]] of the atmosphere leading to catastrophic environmental consequences. [http://www.junkscience.com/news/robinson.htm]</ref>

Since 1989, advocates have clashed on the issue of whether human beings are more responsible than nature for  modern periods of global warming; see "[[greenhouse warming]]" and [[global warming theory]].<ref>Some people predicted "global warming," which has come to mean extreme [[greenhouse warming]] of the atmosphere leading to catastrophic environmental consequences. [http://www.junkscience.com/news/robinson.htm]</ref>