Climate Change.

Slides:

Advertisements

Similar presentations

Climate Change. I. The Earth's Climate has changed many times, due to natural causes. **There have been at least 4 Ice Ages in the last 3 million years.

Advertisements

Climatology Climatology is the study of Earth’s climate and the factors that affect past, present, and future climatic changes. Climate describes the long-term.

Global Warming The Earth's climate has changed many times in the past. Subtropical forests have spread from the south into more temperate (or milder, cooler.

The Truth about Global Warming As seen through the eyes of a physicist Dr. Suzanne Willis, Ph.D Northern Illinois University June 29,2011.

Long-Term Changes in Climate Changes by Andrew Nguyen, Taylor Canfield, and Chase Saeger.

Climatic changes in the last 200 years (Ch. 17 & 18) 1. Is it warming? --climate proxy info (recap) -- info from historical & instrumental records 2. What.

Your Name Your Title Your Organization (Line #1) Your Organization (Line #2) Global warming.: Matthieu BERCHER, Master M.I.G.S., University of Burgundy,

Climate Chapter 14.

Climatic Changes During an average human lifetime, Climates do not appear to change. However, they are in a constant state of change.

Essential Principles Challenge

Discussion Questions 1.Do you believe global warming/climate change is happening? 2.Do you believe human activity is contributing to it? 3.What evidence.

NOTE: This presentation was not made for public use. Please do not use this presentation without my permission and the permission of each of the authors.

{ Natural Changes in Climate.  8.9 Long Term and Short Term Changes in Climate  8.10 Feedback Loops and Climate  8.11 Clues to Past Climates.

Chapter 4 Sections 3 and 4 Long Term Changes in Climate Global Changes in the Atmosphere.

 The difference between weather and climate is a measure of time. Weather is what conditions of the atmosphere are over a short period of time, and climate.

This postcard shows a warm coastal climate.

Evidence of Climate Change

Ice Ages Effects on Climate, Weather, & Geography.

Samayaluca Dune Field, south of Juarez, Chihuahua Global Climate Change.

Class #35: Friday, November 201 Past Climates: Proxy Data and Mechanisms of Change.

 Climate change is a significant and lasting change in the weather patterns over periods ranging from decades to millions of years.

Climate Review. Climate Long term average conditions of a region (occurs over many years) –Usually described in terms of average temperatures, precipitation,

Global Warming Vs Climate Change

History of Climate Change  During earth’s history, climate has generally been warmer than it is today, but is periodically interrupted by short cooler.

Long Term Changes in Climate Chapter 14 Section 3.

What climate change means Climate consists of averages & extremes of –hot & cold –wet & dry –snowpack & snowmelt –winds & storm tracks –ocean currents.

Sustainability and Globalization Global Warming. A global issue with regards to sustainability A world-wide warming of the Earth’s lower atmosphere.

Samayaluca Dune Field, south of Juarez, Chihuahua Global Climate Change.

Greenhouse Effect Mechanisms Affecting the Greenhouse Evidence for Climate Change.

Review Chapter 6: Climatic Changes. What’s Your Favorite Thing About Thanksgiving? Turkey 2.Vegetables.

Module 4 Changes in Climate. Global Warming? Climate change –The pattern(s) of variation in climate (temperature, precipitation) over various periods.

Aim: How can we use a heat budget to determine climate? DO NOW: TAKE SCRAP and get ready. DO NOW: TAKE SCRAP and get ready.

Changes in Climate Earth Science Mr. Barry.

Climate Change. Any long-term significant change in the average weather of a region or the Earth as a whole Includes changes in average temperature, precipitation.

Climate and Climate Change Chapter 21

Global Warming.

Global Warming Learning objectives: 1. To understand the greenhouse effect and why global warming occurs 2. To understand the impact that global warming.

Class #39: Friday, April 171 Mechanisms of Climate Change Natural and Anthropogenic.

Factor Influencing Climate Change Tectonics Ocean Circulation Patterns and the Thermohaline Cycle Orbital Forcing Mechanisms Atmospheric Variations.

 Journal: Compare and contrast the carbon cycle and the nitrogen cycle.

History of Climate Change  During earth’s history, climate has generally been warmer than it is today, but is periodically interrupted by short cooler.

CHAPTER 15 THE EARTH’S CHANGING CLIMATE CHAPTER 15 THE EARTH’S CHANGING CLIMATE.

Chapter: Climate Section 3: Climatic Changes.

9.1Evidence of Changing Climate. Rising Temperatures  Records of Earth’s average temperatures over the past 100 years  Records show avg. temperatures.

Evidence of Climate Change Climate Change Climate Change.

Climate change and global warming. Imagine that last summer was much hotter than usual where you live. Is this a sign of climate change? Yes or no? Imagine.

How it happens and how it affects us.

Assumption College Mathayom 1, Foundation Science Miss Anna.

Climate Change Ch. 12 Study Guide. 1. Identify 2 physical features and explain how they influence the climate. Latitude Elevation.

Years before present This graph shows climate change over the more recent 20,000 years. It shows temperature increase and atmospheric carbon dioxide. Is.

Ice Age Ice Age, a time when ice sheets and alpine glaciers were EXTENSIVE, and advanced and receded repeatedly over LONG PERIODS of time.

Climate Change. Causes Several factors affect global climate: 1.Changes in solar output 2.Changes in Earth's orbit 3.Changes in the distribution of continents.

Glaciers. Formation of glaciers Glaciers – a large mass of moving ice. At high elevations and in polar regions, snow can remain on the ground year-round.

Climate Change Overview: Key Concepts. Climate vs. Weather What is weather? – Conditions of the atmosphere over a short period of time (e.g. day- to-day).

Climate. Weather vs. Climate Weather – the condition of Earth’s atmosphere at a particular time and place. – Short-term: Hours and days – Localized: Town,

LONG AND SHORT TERM CHANGES IN CLIMATE. LONG TERM CHANGES Continental Drift When continents move, ocean currents and wind patterns change which affects.

Climate Factors of Climate El Nino Topography Greenhouse Effect

What is Climate Change? Long term changes in the Earth’s heat budget resulting from radiative inbalance can result in a colder or warmer climate.

What is climate? 1 Climate

Full of ingredients to make your child a genius.

Long and Short Term Changes in Climate

Climate Change.

Current Climate Change

DO NOW Pick up notes and Review #25..

Climate Change.

Climate and Change.

Chapter: Climate Section 3: Climatic Changes.

The Earth in Balance.

Presentation transcript:

Climate Change

Evidence for Global Climate Change Sea water temperature increase Continental ice sheet s melting Sea ice melting Extreme weather events Change in animal nesting/birth cycles Increase in ocean acidity Sea level rise

I. The Earth's Climate has changed many times, due to natural causes. **There have been at least 4 Ice Ages in the last 3 million years - with only a 5oC cooler difference!

Four major continental glaciations are recorded in North America Four major continental glaciations are recorded in North America. The last began about 70,000 years ago, and ended 10,000 years ago. The ice moved as far south as Missouri.

II. What Are Some Causes of Climate Change? (Answer) Variations in the Earth's Orbit (tilt or shape) - cycles from 20,000 to 100,000 yrs.

Milanković Cycle He mathematically theorized that variations in eccentricity, axial tilt, and precession of the Earth's orbit determined climatic patterns on Earth through orbital forcing.

(B) Changes in the amount of energy coming from the Sun

C) Volcanic emissions

SOME HUMAN ACTIVITIES MIGHT BE: (A) Burning of fossil fuels (coal, oil, and natural gases: (B) Global Deforestation

EVIDENCE OF GLOBAL TEMPERATURE INCREASES SINCE 1900: (A) Recorded temperature changes (B) The observed rise in sea level of 4-8 inches (C) The shrinkage of mountain glaciers (D) Reduction of northern hemisphere snow cover (E) Increasing sub-surface ground temperatures

Effects of Global Climate Change Sea level rise Shift in animal and plant concentrations Trees flowering sooner Decrease in fresh water in some parts of the world Some areas of the world will experience more flooding