The Sierra Club, with over 700,000 members nationwide, is the oldest grassroots environmental organization in the United States. It sees its purpose as preservation, protection, and enhancement of the natural environment.
Article IV, Section 4. This section is called the Guarantee Clause, because by its terms the federal government makes certain guarantees to the states. One of theseâprotection from foreign invasionâcontinued Congress's prior obligation under the Articles of Confederation.
Article V [No Constitutional Amendment to Ban Slavery Until 1808] ...No Amendment which may be made prior to the Year One thousand eight hundred and eight shall in any Manner affect the first and fourth Clauses in the Ninth Section of the first Article.