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1971 was a common year starting on Friday of the Gregorian calendar, the 1971st year of the Common Era (CE) and Anno Domini (AD) designations, the 971st year of the 2nd millennium, the 71st year of the 20th century, and the 2nd year of the 1970s decade.
The 1971 San Francisco Bay oil spill occurred when two Standard Oil tankers, the Arizona Standard and the Oregon Standard, collided in the San Francisco Bay, resulting in an 800,000 US gallons (3,000,000 L) spill. It led to the formation of a number of environmental organisations.
The Twenty-sixth Amendment to the United States Constitution was ratified on July 1, 1971, lowering the voting age for all federal and state elections from 21 years to 18 years. The primary impetus for this change was the fact that young men were being drafted to fight in the Vietnam War before they were old enough to vote. [33]
These articles relate to the natural environment in the year 1971. They include the human impact on the environment , environmental law , nature conservation , environmentalism and environmental issues .
The goal of Earth Day 2014 was to dramatically personalize the massive challenges surrounding global climate change and weave that into both Earth Day 2014 and the five-year countdown to Earth Day 2020, the 50th anniversary. It was an opportunity to unite people worldwide into a common cause and call for action. [110]
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An April 28, 1975, article in Newsweek magazine was titled "The Cooling World", [37] it pointed to "ominous signs that the Earth's weather patterns have begun to change" and pointed to "a drop of half a degree [Fahrenheit] in average ground temperatures in the Northern Hemisphere between 1945 and 1968." The article stated "The evidence in ...
A calendar year is an approximation of the number of days of the Earth's orbital period, as counted in a given calendar.The Gregorian calendar, or modern calendar, presents its calendar year to be either a common year of 365 days or a leap year of 366 days, as do the Julian calendars.