GLOBAL ATMOSPHERIC CHANGE PRESENTATION

GLOBAL ATMOSPHERIC CHANGES

GROUP 1

ADAME, GRACE P.AGUILAR, SOFIA JUREN A. ALINGASA, MA. CHRIS EVE A. PALOMO, NICOLAS ROISE A. PANIAGUA, JHIMLYN MARIE

TOPIC SEQUENCE

01. Structure of the Atmosphere02. Upper Atmosphere Processes03. Natural and Human Influences04. Effects of Atmospheric Change05. Recommendation

01

Structure of the atmosphere

TROPOSPHERE

01

Structure of the atmosphere

STRATOSPHERE

01

Structure of the atmosphere

MESOSPHERE

01

Structure of the atmosphere

THERMOSPHERE

Atmospheric Change

• Shifts in chemical composition throughout the lower atmosphere.
• Substantial alterations in chemical composition in the upper atmosphere.

02. upper atmosphere processes

Chemical

• responsible for the formation and maintainance of the Earth's stratospheric ozone layer.

02. upper atmosphere processes

Dynamic

• Atmospheric heating influences chemistry and through the creation of pressure gradients, the wind fields.

02. upper atmosphere processes

Dynamic

• Atmospheric heating influences chemistry and through the creation of pressure gradients, the wind fields.

02. upper atmosphere processes

Energy Inputs

• Radiation from the Sun is the dominant influence on upper atmosphere processes.
• This energy, together with magnetosphere energy inputs at high latitude, is fundamental to photochemistry and dynamics of upper atmosphere.

03

CAUSES

of Atmospheric Change

natural causes

03

CAUSES

of Atmospheric Change

natural causes

03

CAUSES

of Atmospheric Change

natural cause

natural cause

• spew out lava, carbon dioxide (CO2), and ash particles, which increase the planetary reflectivity causing atmospheric cooling
• Volcanic debris includes sulfur dioxide that combines with water vapor and dust in the atmosphere form sulphate aerosols, which reflect sunlight away from Earth's surface and can remain in the atmosphere for a year or more.

volcanic eruptions

natural cause

• are density-driven and differ from surface currents in scale, speed, and energy
• The colder and saltier the ocean, the denser it is.
• Density differences in ocean contribute to a global-scale scale circulation system.

ocean currents

natural cause

• Changes in the tilt of the Earth can lead to small but important changes in the strength of the seasons.

earth orbital changes

natural cause

• A portion of the warming in the first half of the 20th century was due to increase in the output of the solar energy.

solar variations

natural cause

• El Niño-La Niña cycle cause temporary warming and cooling.
• Arctic Oscillation brings warmer atmosphere to parts of Europe and North America, leaving the Arctic cooler than usual and vice versa.

internal variability

03

CAUSES

of Atmospheric Change

HUMAN ACTIVITIES

03

CAUSES

of Atmospheric Change

HUMAN ACTIVITIES

03

CAUSES

of Atmospheric Change

HUMAN ACTIVITY

HUMAN ACTIVITy

• Manufacturing goods
• Mining and industrial processes
• Powering residential and commercial buildings

BURNING OF FOSSIL FUELS

human activity

• releases carbon
• limits nature's ability to keep emission out of the atmosphere

cutting down forests

HUMAN ACTIVITy

• major contributor of greenhouse gases: carbon dioxide emissions

using transportation

human activity

• requires energy to run farming equipment or fishing boats, usually with fossil fuels
• Growing crops can cause emissions when using fertilizers and manure.
• Emmisions from packaging and distributing food

producing food

HUMAN ACTIVITy

• Your home, use of power, how you move around, what you eat, and how much you throw away contribute to greenhouse gas emissions.

consumingtoo much

04

EFFECTS OF ATMOSPHERIC CHANGES

04

EFFECTS OF ATMOSPHERIC CHANGES

04

EFFECTS OF ATMOSPHERIC CHANGES

04

EFFECTS OF ATMOSPHERIC CHANGES

03

HOTTER TEMPERATURE

• increases heat-related illnesses and make working outdoors more difficult
• Wildfires start more easily and spread more rapidly when conditions are hotter.

03

MORE SEVERE STORMS

• destroy homes and communities, causing deaths and huge economic losses

03

INCREASED DROUGHT

• increased risk in agriculture and the vulnerability of ecosystems
• Many people now face the threat of not having enough water on a regular basis.

03

a warming, RISING OCEAN

• threats coastal and island communities
• The ocean absorbs carbon dioxide; but more carbon dioxide makes the ocean more acidic, which endangers marine life and coral reefs.

03

loss of species

• The world is losing species at a rate 1,000 times greater than at any other time in recorded human history.

03

NOT ENOUGH FOOD

• Some fisheries, crops, and livestock are destroyed and become less productive.
• Marine resources that feed billions of people are at risk.
• Changes in snow and ice cover in many Arctic regions have disrupted food supplies.

03

health risks, poverty, & displacement

• pollutions, disease, extreme weather events, forced displacement, pressures on mental health, and increased hunger and poor nutrition

05

recommendations

What can we do?

USE REUSABLE BAGS

USE REUSABLE BAGS

PRINT AS LITTLE AS NECESSARY

USE REUSABLE BAGS

PRINT AS LITTLE AS NECESSARY

SAVE ENERGY AT HOME

THANKS!