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 VI of the Articles of Confederation was the source of the Constitution's prohibition on federal titles of nobility and the so-called Emoluments Clause. The clause sought to shield the republican character of the United States against corrupting foreign influences.