Unit 2



Unit 2
Weather / Climate Change
NGSS Standards
 Ask questions to clarify evidence of the factors that have
caused the rise in global temperatures over the past
 Evaluate competing design solutions for maintaining
biodiversity and ecosystem services.*
 Develop and use a model to describe how unequal heating
and rotation of the Earth cause patterns of atmospheric
and oceanic circulation that determine regional climates.
 Collect data to provide evidence for how the motions and
complex interactions of air masses results in changes in
weather conditions.
Unit 4 Weather/Climate Change Day 5
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
• Coral Reef Cryptogram
•Coral Reef Investigation
•Cause of Bleaching
•Do Later:
• SIA Articles
Unit 4 Weather/Climate Change Day 6
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
• Climate Change word search
•SIA Weather Week 2
•Global Climate Change
•Coral Bleaching wrap-up
•FINISH Ring of Fire Video
•Do Later:
•Enjoy your weekend!
Unit 4 Weather/Climate Change Day 7
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
•Climate Change Puzzle
•Global Climate Change
•Notes and Discussion
•Six Degrees can Change the World
•Do Later:
• SIA Weather
Unit 4 Weather/Climate Change Day 8
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
•Climate Change Puzzle
•Turn in: Getting Warmer
•FINISH: Six Degrees Change the World
•Global Warming Summary Notes
•Do Later:
•SIA Weather
Unit 4 Weather/Climate Change Day 9
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
•Climate Change Newspaper
•Typing, Illustrations, Assembly
•Do Later:
•Newspaper Stories
Unit 4 Weather/Climate Change Day 10
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
•Storm Tracker BRMS
•Do Later:
•SIA Weather
Unit 4 Weather/Climate Change Day 11
Clarify evidence of the factors that have caused the rise in
global temperatures over the past century.
•Do Now:
•SIA Weather Week 3
•Do Later:
•Enjoy your Weekend!
some ways a
living organism interacts
with its environment?
Healthy Reef vs. Unhealthy Reef
What is the I2 strategy?
IDENTIFY: What do you see in the
picture or graph?
INTERPRET: What do the things I see in
the picture or graph mean?
 Step
1: Identify features and patterns
directly on the graph, figure, or data
 Draw
an arrow to each feature and
write a ‘What I See’ (WIS) comment.
 Step
2: Interpret the meaning of each
feature or pattern
Draw an arrow to each feature and
write a ‘What It Means; (WIM)
What do I see? What does it mean?
Bleaching: 1998 and 2006
CAUSE? Find out what these are and
the effect they have on a coral reef!
 OVEREXPLOITATION (over fishing)
What IS the cause of coral bleaching?
23 miles above
the Earth's
 break both a
52 year skydiving record
and the sound
Crewmembers of the International Space Station
returning from space walks have described the
smell of space…
Researchers have found that chimpanzees could survive up to 3.5
minutes in near-vacuum conditions with no apparent long term problems.
Greenhouse Gases
Global Warming
The Process called Global
Warming refers to ___?___
The addition of carbon dioxide and certain
other gases to the atmosphere may cause
Global Warming.
These gases act as a blanket to trap heat
and keep the planet warm They absorb
greenhouse gases from the earth’s
surface and trap it near the earth.
Water Vapor
Traps heat preventing nighttime cooling
that normally occurs when the air is
 Increase in temperature = increase in
water vapor because warm air holds
more water vapor
 Contributes to natural
greenhouse effect
It’s official: The
bleaching of the
Great Barrier Reef
experienced this
year has been the
worst on record.
With the results
now in, experts
have confirmed
that 67 percent of
sections of coral in
the north of the
reef died due to the
extreme heat stress
Carbon Dioxide
Taken in during respiration in plants
 Produced during decomposition of
organic materials and respiration in
 Human activities create most CO2
– Burning fossil fuels
– deforestation
Acid Rain
Produced during decomposition of organic
material in wet, oxygen-deficient
 Caused by
– Marshes
– Swamps
– Leaking natural gas
– Decaying materials in landfills
Chlorofluorocarbons (CFCs)
Destroy the ozone layer
 Remain in the atmosphere for 100 years
 Used to be found in air conditioners and
Nitrous Oxide
200 times more effective in trapping
heat than Carbon Dioxide
 Caused by
Fossil fuels
Nylon manufacturing
Dental offices
Whipped cream cans
Blocks sun’s harmful rays
 Harmful pollutant in troposphere
 Ozone increases as urban air pollution
Living in a Warmer World
 Global
warming is one of the most
serious and threatening problem this
 As greenhouse gases increase, the level
in the atmosphere increases and global
temperatures rise
 Scientists believe greenhouse gases will
change climate dramatically
Impacts of Greenhouse Gases
Increase in sea level 
 Increase in
evaporation will
exceed precipitation
 Plants/animals may
not be able to adapt to
new climates
 Affect growing season
of crops
Increased ozone
causes diseases
(asthmas and other
lung ailments)
 Manifestations
of the Greenhouse
Effect…What are we already seeing:
 Increase in global mean temperature
 Increase in ocean temperature & pH
 Increase in cloud cover of the earth
 Disruption of the Jet Stream patterns
 1-2m increase in sea level over next 50-100
Climate Visuals
What causes Global Climate Change?
1. Natural Warming Cycle:
 The earth goes through natural cycles
of warming up and cooling down.
 Right now, the earth is in the middle of
a natural warm-up cycle.
 Unfortunately, human action has
turned this natural and harmless
phenomenon into a dangerous
2. Greenhouse Effect:
 Greenhouse effect is the leading cause of
global warming. The rate at which the Earth is
heating up is increasing drastically. And the
greenhouse effect is the biggest factor behind
this rise.
 The earth’s atmosphere traps solar radiation
due to gasses like water vapor, carbon
dioxide, and methane in the atmosphere,
allowing the sunlight to pass through it to the
earth but preventing the reflected heat from
 This leads to an increase in the planet’s
3. Reliance On Artificial Sources:
 Artificial
sources like petroleum are one of
the leading emitters of greenhouse
 With growing population, the use of
greenhouse gas emitters has also gone
up drastically.
 These gasses trap more heat in the
earth’s surface and make it warmer. This
is causing the global warming.
4. Deforestation:
 Deforestation
or cutting down of tropical forests
is one of the most significant causes of global
warming and climate change.
 The slash and burn technique used for clearing
the forest releases high levels of carbon
dioxide in the atmosphere.
 Secondly, cutting down of trees reduces the
amount of photosynthesis, a process that
removes carbon dioxide from the air and stores
it in the plant as carbon
Effects Of Global Warming
1.Extreme Changes In Weather:
 Sudden changes in the climate are also causing
the weather to become extreme.
 Droughts, heavy rain or violent storms are some
of the common results of severe weather.
 Extreme changes in temperature also cause
breathing difficulties, body rashes, headache
and other illnesses.
2. Threats To Animals And Their Habitat:
 Climate change can also distort the natural
habitats and lives of animals and plants. For
instance, the survival of penguins and polar
bears in cold regions are in danger because
their habitat is melting away, and they cannot
survive anywhere else.
 Even the plants and animals in the hotter areas
are on the verge of extinction because of the
changes in temperature and climate.
3. Shrinking Of Ice Sheets And Declining Of
Arctic Sea Ice:
 The Antarctic and Greenland ice sheets are
decreasing in mass at a very fast rate.
 Research from NASA’s Gravity Recovery and
Climate Experiment has shown that Greenland
has lost 250 cubic kilometers of ice between the
year 2002 and 2006, and Antarctic lost 152
cubic kilometers of ice between 2002 and 2005.
 The thickness and extent of the Arctic sea have
also been declining.
4. Rising Water Level:
 The large volumes of melted water flow
down into the lakes, rivers, and seas.
 The rising water levels are causing
flooding and massive destruction in lowlying towns and cities along the water
 Scientists warn that if global warming
continues unabated, several low-lying
areas like the Bay Of Bengal, the country
of Maldives could drown.
 Part of the Solomon Islands and the
nation of Nuatambu are already gone.
5. Agricultural Regions adjust and
Food Shortages/Rising Food Prices :
As drought and flooding ruins some
areas, food shortages and rising prices
will be common.
 Local benefits may be felt in other
regions especially the Northern
 Areas like Canada and Northern Europe
will become major production areas and
have increased growing seasons.
CNN World
6. Some Predictions for you…
Up to 6 Crise in global mean temp by 2050 and an
Increase in natural weather problems like
tornados, hurricanes, floods and wildfires
 Up to 15 C rise in mean polar temperature with
total Glacier retreat / melting, Changes in the
coastlines of land masses. Polar animals
endangered by loss of habitat.
 Acidification of the ocean as more greenhouse
gases enter the atmosphere and CO2 becomes
carbolic acid in water. The Increased pH of
seawater is detrimental to corals and marine
animals with an expected lost of over 25% of our
known marine animal biome.

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