Climate change

Climate change is a change in the statistical distribution of weather patterns when that change lasts for an extended period of time (i.e., decades to millions of years). Climate change may refer to a change in average weather conditions, or in the time variation of weather around longer-term average conditions (i.e., more or fewer extreme weather events). Climate change is caused by factors such as biotic processes, variations in solar radiation received by Earth, plate tectonics, and volcanic eruptions. Certain human activities have also been identified as significant causes of recent climate change, often referred to as "global warming".

Scientists actively work to understand past and future climate by using observations and theoretical models. A climate record—extending deep into the Earth's past—has been assembled, and continues to be built up, based on geological evidence from borehole temperature profiles, cores removed from deep accumulations of ice, floral and faunal records, glacial and periglacial processes, stable-isotope and other analyses of sediment layers, and records of past sea levels. More recent data are provided by the instrumental record. General circulation models, based on the physical sciences, are often used in theoretical approaches to match past climate data, make future projections, and link causes and effects in climate change.

National Geographic

National Geographic or NatGeo may refer to:

See also

Climate

Climate is the statistics (usually, mean or variability) of weather, usually over a 30-year interval. It is measured by assessing the patterns of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time. Climate differs from weather, in that weather only describes the short-term conditions of these variables in a given region.

A region's climate is generated by the climate system, which has five components: atmosphere, hydrosphere, cryosphere, lithosphere, and biosphere.

The climate of a location is affected by its latitude, terrain, and altitude, as well as nearby water bodies and their currents. Climates can be classified according to the average and the typical ranges of different variables, most commonly temperature and precipitation. The most commonly used classification scheme was Köppen climate classification originally developed by Wladimir Köppen. The Thornthwaite system, in use since 1948, incorporates evapotranspiration along with temperature and precipitation information and is used in studying biological diversity and the potential effects on it of climate changes. The Bergeron and Spatial Synoptic Classification systems focus on the origin of air masses that define the climate of a region.

Change

Change, The Change, or Changing may refer to:

The process of becoming different

Pope Francis

Pope Francis (Latin: Franciscus; Italian: Francesco; Spanish: Francisco; born Jorge Mario Bergoglio, 17 December 1936) is the 266th and current Pope of the Roman Catholic Church, a title he holds ex officio as Bishop of Rome, and Sovereign of the Vatican City. He chose Francis as his papal name in honor of Saint Francis of Assisi. Francis is the first Jesuit pope, the first from the Americas, the first from the Southern Hemisphere and the first non-European pope since the Syrian Gregory III in 741.

Born in Buenos Aires, Argentina, Bergoglio worked briefly as a chemical technologist and nightclub bouncer before beginning seminary studies. He was ordained a Catholic priest in 1969 and from 1973 to 1979 was Argentina's provincial superior of the Society of Jesus. He was accused of handing two priests to the National Reorganization Process during the Dirty War, but the lawsuit was ultimately dismissed. He became the Archbishop of Buenos Aires in 1998 and was created a cardinal in 2001 by Pope John Paul II. He led the Argentine Church during the December 2001 riots in Argentina, and the administrations of Néstor Kirchner and Cristina Fernández de Kirchner considered him a political rival. Following the resignation of Pope Benedict XVI on 28 February 2013, a papal conclave elected Bergoglio as his successor on 13 March.