- Drive less. Use trains and buses, carpool, walk, or ride a bicycle.
- Fly less. Airplanes release huge amounts of greenhouse gas.
- Reduce, reuse and recycle.
- Plant a tree. Trees soak up carbon dioxide, keeping it out of the atmosphere.
- Use less electricity.
- Eat less meat. Cows are one of the biggest methane producers.
- Use types of power that do not burn coal, oil or gas. Instead, use power from the wind or the sun.
to adjust to new surroundings or a new situation.
container of liquid material under high pressure. When released through a small opening, the liquid becomes a spray or foam.
modern farming methods that include mechanical, chemical, engineering and technological methods. Also called industrial agriculture.
the art and science of complex machines used to perform tasks associated with farming and ranching.
organisms that have a well-defined shape and limited growth, can move voluntarily, acquire food and digest it internally, and can respond rapidly to stimuli.
layers of gases surrounding a planet or other celestial body.
an invisible line around which an object spins.
large fruit native to trees found on islands in the south Pacific Ocean.
greenhouse gas produced by animals during respiration and used by plants during photosynthesis. Carbon dioxide is also the byproduct of burning fossil fuels.
system of transportation where one car transports several riders.
chemical compound mostly used in refrigerants and flame-retardants. Some CFCs have destructive effects on the ozone layer.
all weather conditions for a given location over a period of time.
gradual changes in all the interconnected weather elements on our planet.
person who studies long-term patterns in weather.
dark, solid fossil fuel mined from the earth.
to occur at the same time.
result or outcome of an action or situation.
tectonic plate found beneath continents.
steady, predictable flow of fluid within a larger body of that fluid.
remains of something broken or destroyed; waste, or garbage.
to decay or break down.
to place or deliver an item in a different area than it originated.
area of land that receives no more than 25 centimeters (10 inches) of precipitation a year.
construction or preparation of land for housing, industry, or agriculture.
very large, extinct reptile chiefly from the Mesozoic Era, 251 million to 65 million years ago.
very expressive or emotional.
period of greatly reduced precipitation.
earthen mound shaped by glaciers.
climate group that experiences low precipitation.
set of physical phenomena associated with the presence and flow of electric charge.
irregular, recurring weather system that features a warm, eastern-flowing ocean current in the eastern Pacific Ocean.
discharge or release.
to give off or send out.
to surround or submerge.
conditions that surround and influence an organism or community.
imaginary line around the Earth, another planet, or star running east-west, 0 degrees latitude.
process of enlarging.
no longer existing.
one or more buildings used for the manufacture of a product.
material, usually of plant or animal origin, that living organisms use to obtain nutrients.
ecosystem filled with trees and underbrush.
remnant, impression, or trace of an ancient organism.
coal, oil, or natural gas. Fossil fuels formed from the remains of ancient plants and animals.
to become a solid mineral.
mass of ice that moves slowly over land.
increase in the average temperature of the Earth's air and oceans.
phenomenon where gases allow sunlight to enter Earth's atmosphere but make it difficult for heat to escape.
gas in the atmosphere, such as carbon dioxide, methane, water vapor, and ozone, that absorbs solar heat reflected by the surface of the Earth, warming the atmosphere.
environment where an organism lives throughout the year or for shorter periods of time.
tropical storm with wind speeds of at least 119 kilometers (74 miles) per hour. Hurricanes are the same thing as typhoons, but usually located in the Atlantic Ocean region.
greenhouse gas often used as an industrial cooling material.
greenhouse gas often used as an industrial cooling material.
long period of cold climate where glaciers cover large parts of the Earth. The last ice age peaked about 20,000 years ago. Also called glacial age.
thick layer of glacial ice that covers a large area of land.
meaning or effect.
time between ice ages, when global temperatures are warmer and sea levels rise.
body of land surrounded by water.
site where garbage is layered with dirt and other absorbing material to prevent contamination of the surrounding land or water.
distance north or south of the Equator, measured in degrees.
(~1600-~1850) period of cooling climate (~1° Celsius), documented largely in the Northern Hemisphere.
infectious disease caused by a parasite carried by mosquitoes.
very large or heavy.
rocky debris from space that enters Earth's atmosphere. Also called a shooting star or falling star.
chemical compound that is the basic ingredient of natural gas.
material, such as earth, sand, and gravel, transported by a glacier.
type of fossil fuel made up mostly of the gas methane.
fossil fuel formed from the remains of marine plants and animals. Also known as petroleum or crude oil.
path of one object around a more massive object.
living or once-living thing.
person who studies fossils and life from early geologic periods.
supercontinent of all the Earth's landmass that existed about 250 million years ago.
to get rid of in stages, or stop using over time.
organism that produces its own food through photosynthesis and whose cells have walls.
movement and interaction of the Earth's plates.
climate group found within the Arctic and Antarctic Circles.
chemical or other substance that harms a natural resource.
regular or able to be forecasted.
slowing or stopping.
methods of movement that are available to all community members for a fee, and which follow a fixed route and schedule: buses, subways, trains and ferries.
to move outward from a central spot.
amount of precipitation that falls in a specific area during a specific time.
agricultural land where livestock graze.
to retreat or withdraw.
substance used to keep materials cool.
to move a residence or business from one place to another.
to go back to a familiar or safe place.
natural substance composed of solid mineral matter.
to rub harshly, often to polish.
base level for measuring elevations. Sea level is determined by measurements taken over a 19-year cycle.
period of the year distinguished by special climatic conditions.
solid material transported and deposited by water, ice, and wind.
rock formed from fragments of other rocks or the remains of plants or animals.
rate of producing, transferring, or using solar energy.
dying from lack of food.
severe weather indicating a disturbed state of the atmosphere resulting from uplifted air.
dark, cooler area on the surface of the sun that can move, change, and disappear over time.
the science of using tools and complex machines to make human life easier or more profitable.
degree of hotness or coldness measured by a thermometer with a numerical scale.
rock, earth, and gravel left behind by a retreating or melting glacier.
wood in an unfinished form, either trees or logs.
a violently rotating column of air that forms at the bottom of a cloud and touches the ground.
buying, selling, or exchanging of goods and services.
winds that blow toward the Equator, from northeast to southwest in the Northern Hemisphere and from southeast to northwest in the Southern Hemisphere.
movement of people or goods from one place to another.
layered formation in the trunk of a tree that marks its growth at least once a year.
existing in the tropics, the latitudes between the Tropic of Cancer in the north and the Tropic of Capricorn in the south.
sickness that usually occurs in a warm, humid climate.
tropical storm with wind speeds of at least 74 miles (119 kilometers) per hour. Typhoons are the same thing as hurricanes, but usually located in the Pacific or Indian Ocean region.
visible liquid suspended in the air, such as fog.
an opening in the Earth's crust, through which lava, ash, and gases erupt, and also the cone built by eruptions.
state of the atmosphere, including temperature, atmospheric pressure, wind, humidity, precipitation, and cloudiness.
repeating or predictable changes in the Earth's atmosphere, such as winds, precipitation, and temperatures.
infectious disease spread by mosquitoes, with symptoms ranging from mild flu to possible death.
kinetic energy produced by the movement of air, able to be converted to mechanical power.
infectious disease spread by mosquitoes, primarily affecting the liver.