Climate Change and Earth

Slides:



Advertisements
Similar presentations
Greenhouse Effect How we stay warm. The Sun’s energy reaches Earth through Radiation (heat traveling through Space)
Advertisements

GREENHOUSE EFFECT Climate Change. Greenhouse Effect Is a natural process that permits the Earth to retain some of the heat from the sun. Gases in the.
Greenhouse Effect: The heating of the surface of the earth due to the presence of an atmosphere containing gases that absorb and emit infrared radiation.
Factors that Influence Climate
10:23 AM Sanders 7.9 Greenhouse Effect Unit 7: Water Cycle and Climate.
6 Planetary Geology Planets Rock!. 6 Goals What determines why planets look the way they do. What are the 4 main process that affect a planet’s surface.
R21 Global Warming & Greenhouse Effect Prior Knowledge: What do you know about Greenhouse Effect and Global Warming?
Chapter 7e Earth is a living planet. 7.5 Earth as a Living Planet Our Goals for Learning What unique features on Earth are important for human life? How.
13 Climate Change and Earth Mommy, what were glaciers like?
Lecture 6 6/11/07 Ast Earth’s Atmosphere The Earth’s atmosphere has several very important properties: –Just enough warmth –Just enough pressure.
Heating of the Atmosphere
The Greenhouse Effect A large majority of the insolation that is radiated back into the atmosphere gets absorbed by greenhouse gases. A large majority.
Heating the Atmosphere Honors Earth Science. Of the sun’s rays that enter our atmosphere, … 20% are absorbed (gamma, x-rays, UV) 30% are reflected 50%
The Greenhouse Effect What is the greenhouse effect? Interaction between planet’s atmosphere, star’s light Results in heating of planet What causes the.
THE GREENHOUSE EFFECT Greenhouse Gases:  chemical compounds in the atmosphere that trap heat  they retain a proportion of the sun’s heat through the.
Global Warming.
TOPIC 6: GLOBAL WARMING AND GREENHOUSE EFFECT. Temperature and Carbon Dioxide Concentration from 1880 to present.
Human Activities and Climate Change 7.6 p
Atmospheric Heating Radiation Conduction Convection.
Ch16: Global Warming-part 1 What is it? What causes it? Focus on Carbon Dioxide.
Warmup What are three natural ways in which climate changes? What timescale do these processes generally occur?
Greenhouse Effect How we stay warm. The Sun’s energy reaches Earth through Radiation (heat traveling through Space)
Atmospheric Heating.
Chapter 19 Global Change.
Greenhouse Effect How we stay warm.
1. Global Climate Change refers to…?:
Section Climate Change
Chapter 19 Global Change.
TOPIC 6 INSOLATION.
Greenhouse Effect How we stay warm.
Greenhouse Effect How we stay warm.
Chapter 19 Global Change.
Composition & Structure
AIM: What is Global Warming?
Greenhouse Effect and Global Warming
Global Climate Change Video
Atmospheric History of Venus
Add to table of contents:
Greenhouse Effect How we stay warm.
Topic 6: Global Warming and Greenhouse Effect
East middle School Climate Change
Atmosphere and climate
Greenhouse the effect.
Greenhouse Effect 2.6.2B EXPLAIN THE CONCEPT OF THE GREENHOUSE EFFECT INCLUDING A LIST OF SPECIFIC GREENHOUSE GASES AND WHY CO2 IS MOST OFTEN THE FOCUS.
Interaction Between Sun, Ocean & Weather Notes
Greenhouse Effect How we stay warm.
The Air Around You-Part 6 Carbon Footprints and Climate Change
Greenhouse Effect How we stay warm.
Greenhouse Effect 2.6.2B EXPLAIN THE CONCEPT OF THE GREENHOUSE EFFECT INCLUDING A LIST OF SPECIFIC GREENHOUSE GASES AND WHY CO2 IS MOST OFTEN THE FOCUS.
Section 2 Atmospheric Heating.
The global energy household
THE GREENHOUSE EFFECT Greenhouse Gases:
Chapter 19 Global Change.
Human Impact on the Carbon Cycle and The Albedo Effect
Greenhouse Effect How we stay warm.
Global Warming One Last Finale The End Of the Holocene
It’s Gettin’ Hot in Here!
ORIGIN & EVOLUTION OF ATMOSPHERES
Human Impacts on Climate Change
Greenhouse Effect How we stay warm.
2/6 What is the greenhouse effect?.
THE CARBON CYCLE.
Topic Climate Change.
Human Impact on the Carbon Cycle
The Human Factor.
Mrs. Brostrom Integrated Science C
Human Causes of Climate Change
States of water (review) (section 10.1)
What is the difference between El Nino and La Nina?
Greenhouse Effect How we stay warm.
Presentation transcript:

Climate Change and Earth Mommy, what were glaciers like?

Goals The Earth’s unique atmosphere? How does what we know about natural climate change relate to what humans can do?

Why is Earth so Different? Why do we have oceans of water? Why do we have so little carbon dioxide? Why do we have so much O2 and N2?

Compared to Venus Temperature just right. Water vapor could rain. Liquid oceans didn’t completely evaporate. CO2 could dissolve in oceans. 60x CO2 dissolved in oceans as atmosphere. 170,000x CO2 in carbonate rocks as atmosphere.

Goldilocks Planet Delicate balance: Earth is just right. No oceans without greenhouse gasses. Without oceans too many greenhouse gasses. Without oceans no life. Without life, no ozone. No ozone, no life. How does Earth maintain this balance?

Carbon Cycle Tectonics are crucial!

Nature’s Thermostat Carbon Cycle has negative feedback. Increasing temperatures lead to feedback that decreases temperatures, etc. Positive and negative feedbacks have nothing to do with desirability of outcome.

Too Cool Less Rain Less CO2 dissolves in oceans. More CO2 builds up in atmosphere Increased greenhouse Heats Up.

Too Warm More Rain More CO2 dissolves in oceans. Less CO2 builds up in atmosphere Decreased greenhouse Cool Down.

Ice Ages and Cycles

Cycles

Human Input Affecting CO2 cycle. Moving C from ground to air at increased rate. No increase in rate of C from air to ground.

Mars Today

Positive Feedback Fossil Fuels – Increase CO2 to atmosphere. Deforestation – decrease CO2 from atmosphere Increase CO2 – Increase greenhouse effect Increase temp – Melting glaciers, ice sheets, polar caps Less ice – lower planetary albedo Lower albedo – Earth absorbs more light More absorption – Increasing surface temperatures.