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.
By Michael B. Rappaport and David A. Strauss. Article V of the Constitution says how the Constitution can be amendedâthat is, how provisions can be added to the text of the Constitution. The Constitution is not easy to amend: only twenty-seven amendments have been added to the Constitution since it was adopted. Article V spells out a few different ways in which the Constitution can be amended.