Science Unit 3 Lesson 9 Flashcards
What is affected by climate change?
temperature
precipitation patterns
growth states of many plants
range of plants and animals
migration patterns
How does global warming affect fish?
Outside a certain temperature range, it is difficult for fish to reproduce and find food. As ocean waters warm, some fish populations in warmer waters have declined or have shifted their range poleward. Fish that thrive in cooler waters have moved poleward as well, to waters still cool enough for them. Cold-water fish like salmon are finding it more difficult to survive in warmer waters of some rivers in the Pacific Northwest.
What happened to leaf and bloom dates due to global warming?
Studies show leaf and bloom dates across the northern hemisphere are now earlier due to warmer late winter weather. The migration times of many bird species have shifted in response to earlier spring weather. Warmer climate will cause some tree species to shift their ranges to higher latitudes or elevations for cooler climate conditions.
What happened to migration times?
They have shifted in response to earlier spring weather
How is global wamring affecting the ice in the Artic?
Ice once covered six million square miles of the Arctic Ocean in winter, decreasing to three million in summer. By 2012, ice covered just one million square miles in summer. The loss of ice also affects animal species, such as polar bears, which need ice as a platform to hunt for their main food, seals.
How does the lack of ice and rising tempertutre affect the jet stream?
The loss of ice and rising temperatures have weakened the jet stream(a band of strong winds high in the atmoshphere). As a result, weather systems are no longer pushed as quickly across the continent from west to east by these winds. They linger, leading to longer cold spells and stormy weather in winter, or droughts and heat waves in summer.
tell me about glaciers
Glacier National Park had almost 150 glaciers in 1910. In 2015 the park had only 26. Glaciers are drinking water reservoirs, storing 70 percent of Earth’s freshwater. The water is released slowly into streams. The meltwater regulates stream temperature for aquatic life, and keeps drinking water flowing even during summer when weather is hot and dry.
Average global precipitation has increased by _____ inches per decade since 1901.
Average global precipitation has increased 0.08 inches per decade since 1901
Rank the greenhouse gases by their ability to trap heat in the atmosphere. Least to greatest
Methane
Fluoridated Gases
Carbon Dioxide
Nitrous Oxide
Carbon dioxide
Methane
Nitrous Oxide
Fluoridated Gases
How much Co2 does the ocean abosrob?
The ocean absorbs between 25 and 30 percent of the carbon dioxide released into the atmosphere.
Identify a tool that scientists use to gather information on ocean temperature and acidity.
Argo float
How does Argo tool gather data?
It travels to different depths in the ocean and takes readings of the water. Then it surfaces to transmit the data to satellites.
