Climate Change Flashcards
This natural trapping of heat is the troposphere is called the ______________. It was first proposed by Swedish chemist Svante Arrhenius in 1896, and has been confirmed by numerous laboratory experiments and atmospheric measurements
greenhouse effects
_______ is the change of the orientation of the rotational axis of the earth.
Precession
While the orbit remains an ___________, its position or orientation in space changes over time.
ellipse
The three elements of Milankovitch cycles
Eccentricity
Obliquity
Precession
The term “climate” comes from a Greek word _______ meaning “_______”.
klinein; to slope
It refers to the motion of the equinoxes relative to the precession of the earth’s axis of rotation. It happens over thousands of years.
Precession equinoxes
Scientists are more than 95% certain that nearly all of global warming is caused by increasing concentrations of ___________ and other human-caused emissions.
greenhouse gases (GHGs)
_________ is emitted during agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste. It can trap heat in the troposphere and deplete ozone in the stratosphere.
Nitrous oxide (N2O)
It is a building with glass walls and a glass roof and is used to grow plants, such as tomatoes and tropical flowers.
Greenhouse
It refers to the point in the orbit of the earth farthest from the sun.
Aphelion
The angle of Earth’s axis that is tilted with respect to Earth’s orbital plane
Obliquity
It is the point in the orbit of the earth closest to the sun.
Perihelion
The ______________ or ______________ is an explanation for changes in the seasons which result from the changes in the earth’s orbit around the sun.
Milankovitch Cycles; Astronomical Theory of Climate Change
it is where the direction of Earth’s axis of rotation is pointed
Precession
It is the main driver of the greenhouse effect, and it enters the atmosphere through burning fossil fuels (coal, natural gas, and oil), solid waste, trees and wood products, and also as a result of certain chemical reactions (e.g., manufacture of cement). It is removed from the atmosphere (or “sequestered”) when it is absorbed by plants as part of the biological carbon cycle.
Carbon dioxide (CO2)
It is the shape of the earth’s orbit
Eccentricity
Most of the scientists who study climate change agree that the
average temperature of the earth’s atmosphere has been increasing by over _____ in the latter part of the 20th century.
90%
It is emitted during the production and transport of coal, natural gas, and oil. Its emissions also result from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills.
Methane (CH4)
The precession of the equinoxes occurs at a rate of 50.27 seconds ofarc a year; a complete precession requires __________.
25,800 years
It happens when the sun at noon sits above the Tropic of Cancer or Tropic of Capricorn.
Solstice
It refers to the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation or its related effect.
Global warming
It refers to atmospheric conditions that occur locally over short periods of time – from minutes to hours or days.
Weather
These are called as heat-trapping gasses that similarly works like the glass roof of a greenhouse.
Greenhouse gases
It refers to significant changes in global temperature, precipitation, wind patterns and other measures of climate that occur over several decades or longer that are especially caused by human activities.
Climate change
