Chapter 5 Flashcards
(22 cards)
The local changes in average temperature, precipitation, and sea level relative to historical conditions that are occurring in locations all over the planet.
Global Climate Change
Local changes in average temperature, precipitation, and sea level
Global climate Change
Relative to historical conditions
Global Climate Change
Occurring all over the earth
Global Climate Change
The progressive increase of Earth’s average temperature that has been occurring over the past century.
Global Warming
Global warming contributes to ____ _________ ______.
Global climate change
What is agreed upon by published scientists
Global Warming
Global warming is mostly attributed to ______ _______.
Human Activity
Global Warming is caused by increases in concentration of ________ ______.
Greenhouse gases
Global warming is caused by increases in concentration of greenhouse gases such as 1. 2. 3. 4.
- Water vapor
- Carbon dioxide (CO2)
- Methane (CH4)
- Ozone (O3)
Greenhouse gases such as CO2, water vapor, and methane, trap ____ ___ ___ _____.
Trap heat in the atmosphere
Greenhouse gases prevent too much heat from escaping into ______.
space
Heat is radiated back to earths surface because earth must be warm enough to ___ ___.
Support life
Atmospheric greenhouse gases trap energy from the sun.
The greenhouse effect
_______ warms the earth’s surface.
Sunlight
Some heat warms up greenhouse gases in the ________.
atmosphere
_______ is reradiated back to Earth.
Heat
Fossil Fuels
1.
2.
3.
petroleum
coal
natural gas
Levels of atmospheric carbon dioxide have increased over the past 50 years because of _______.
Effects of fossil fuel use
Concentrated energy forms produced from the stored carbohydrates of ancient, buried organisms.
Fossil Fuels
Human use of _____ ______ to power homes, cars, and businesses releases stored carbon.
Fossil Fuels
Human use of fossil fuels is having a measurable effect; increases in carbon dioxide in the atmosphere are well documented by direct measurements over the past 50 years.
True
