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  2. Geological history of oxygen - Wikipedia

    en.wikipedia.org/wiki/Geological_history_of_oxygen

    Photosynthetic prokaryotic organisms that produced O 2 as a byproduct lived long before the first build-up of free oxygen in the atmosphere, [5] perhaps as early as 3.5 billion years ago. The oxygen cyanobacteria produced would have been rapidly removed from the oceans by weathering of reducing minerals, [citation needed] most notably ferrous ...

  3. Great Oxidation Event - Wikipedia

    en.wikipedia.org/wiki/Great_Oxidation_Event

    Oxygen, O 2, meanwhile, was present in the atmosphere at just 0.001% of its present atmospheric level. [11] [12] The Sun shone at about 70% of its current brightness 4 billion years ago, but there is strong evidence that liquid water existed on Earth at the time. A warm Earth, in spite of a faint Sun, is known as the faint young Sun paradox. [13]

  4. Gas chamber - Wikipedia

    en.wikipedia.org/wiki/Gas_chamber

    As of 2020, the last person to be executed in the gas chamber was German national Walter LaGrand, sentenced to death before 1992, who was executed in Arizona on March 3, 1999. The U.S. Court of Appeals for the Ninth Circuit had ruled that he could not be executed by gas chamber, but the decision was overturned by the United States Supreme Court ...

  5. List of methods of capital punishment - Wikipedia

    en.wikipedia.org/wiki/List_of_methods_of_capital...

    Death Penalty Worldwide: Archived 2013-11-13 at the Wayback Machine Academic research database on the laws, practice, and statistics of capital punishment for every death penalty country in the world. Smile of death: China History Punishment

  6. Capital punishment by country - Wikipedia

    en.wikipedia.org/wiki/Capital_punishment_by_country

    Long-drop hanging. Death penalty for murder; treason and crimes against the State. There are seven detention centres where execution is carried out - Tokyo, Osaka, Nagoya, Sendai, Fukuoka, Hiroshima and Sapporo. Judges usually impose death penalty in case of multiple homicides; death sentence for a single murder is not particularly common.

  7. Alabama calls nitrogen execution method painless and ... - AOL

    www.aol.com/news/alabama-calls-nitrogen...

    The Alabama attorney general's office told federal appeals court judges last week that nitrogen hypoxia is "the most painless and humane method of execution known to man."

  8. Resolutions concerning death penalty at the United Nations

    en.wikipedia.org/wiki/Resolutions_concerning...

    Recalling also the resolutions on the question of the death penalty adopted over the past decade by the Commission on Human Rights in all consecutive sessions, the last being its resolution 2005/59 of 20 April 2005, [d] in which the Commission called upon states that still maintain the death penalty to abolish it completely and, in the meantime ...

  9. The US has executed 23 men this year. A look at the state of ...

    www.aol.com/news/death-penalty-us-states-still...

    Texas has executed the most inmates of any other state in the nation, and it's not even close. The Lone Star state has put 591 inmates to death since 1982, most recently Garcia Glen White on Oct. 1.