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How Earth's Air Changed, Greenhouse Gases Hurt, and Ways to Help!

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How Earth's Air Changed, Greenhouse Gases Hurt, and Ways to Help!
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Annie Owen-Stiff

@annieowenstiff_dvtk

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11 Followers

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The Earth's atmosphere has undergone significant changes over billions of years, evolving from a primarily carbon dioxide-rich environment to its current composition. This evolution has been influenced by various factors, including volcanic activity, the emergence of life, and human activities.

  • Evolution of the Earth's atmosphere over billion years involved three main phases
  • Early atmosphere was dominated by CO₂ with virtually no oxygen
  • Plant evolution and photosynthesis led to increased oxygen levels
  • Impact of greenhouse gases on climate change is significant and ongoing
  • Human activities have accelerated climate change through increased emissions
  • Various methods to reduce carbon footprints and emissions are being implemented

7/9/2022

259

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

Phase 2: Formation of Oceans and Carbon Sequestration

The second phase of atmospheric evolution was marked by significant changes in the Earth's surface and composition. This period saw the formation of oceans and the beginning of carbon sequestration processes.

As the Earth cooled, the water vapor in the atmosphere began to condense, forming the planet's oceans. This process had a profound effect on the atmospheric composition, as large amounts of CO₂ were removed from the air by dissolving in the newly formed oceans. The dissolved CO₂ underwent a series of chemical reactions, forming carbon precipitates that settled on the seabed as sediments.

During this phase, the first green plants and algae evolved. These organisms played a crucial role in further reducing atmospheric CO₂ levels by absorbing it for photosynthesis. Some of the carbon absorbed by these early life forms eventually became fossil fuels after their death and burial.

Definition: Carbon sequestration - The process of capturing and storing atmospheric carbon dioxide.

Example: The formation of limestone deposits on the ocean floor is an example of natural carbon sequestration.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

Carbon Footprints and Reduction Methods

Carbon footprints are a measure of the total greenhouse gas emissions caused directly and indirectly by an individual, organization, event, or product. Measuring carbon footprints can be challenging due to the many factors involved, from sourcing materials to disposal.

There are various methods to reduce carbon footprints and emissions, including:

  1. Transitioning to renewable energy sources
  2. Implementing more efficient processes to conserve energy
  3. Reducing waste production
  4. Government regulations on emissions

Governments often implement policies to cap emissions of greenhouse gases and may tax companies based on the amount of greenhouse gases they produce.

Definition: Carbon footprint - The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO₂).

Example: Choosing to cycle instead of drive, or using energy-efficient appliances are ways individuals can reduce their carbon footprint.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

Phase 3: Oxygen-Rich Atmosphere

The third phase of atmospheric evolution saw a dramatic increase in oxygen levels, leading to the composition similar to what we have today.

About 200 million years ago, the Earth's atmosphere reached a composition similar to its current state. This transformation was primarily driven by the proliferation of plants and algae, which produced oxygen as a byproduct of photosynthesis.

The current atmosphere consists of approximately 80% nitrogen and 20% oxygen, with small amounts of other gases, including CO₂, noble gases, and water vapor.

Quote: "200 million years ago atmosphere reached a composition similar to one it is today."

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

Greenhouse Gases and Climate Change

Greenhouse gases, primarily CO₂, methane, and water vapor, play a significant role in regulating Earth's temperature. These gases act as an insulating layer in the Earth's atmosphere, trapping heat and contributing to the greenhouse effect.

The impact of greenhouse gases on climate change is substantial. These gases don't absorb short-wavelength radiation but do absorb and re-radiate long-wavelength radiation in all directions, including back to Earth. This process, known as the greenhouse effect, warms the planet.

Human activities have significantly increased the concentration of greenhouse gases in the atmosphere, leading to accelerated climate change. Some key factors contributing to this increase include:

  1. Burning of fossil fuels
  2. Deforestation, which reduces CO₂ absorption through photosynthesis
  3. Agriculture, particularly livestock farming, which increases methane emissions
  4. Waste creation and decomposition, releasing CO₂ and methane

Highlight: The impact of greenhouse gases on climate change is evident in rising sea levels, changes in rainfall patterns, and increased frequency and severity of storms.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

Phase 1: The Early Atmosphere

The first billion years of Earth's history saw the formation of its early atmosphere through intense volcanic activity. This period was characterized by the release of various gases that would shape the planet's future.

During this phase, the Earth's surface was covered in volcanoes that erupted continuously, releasing large amounts of gases into the atmosphere. These gases primarily consisted of carbon dioxide (CO₂), with virtually no oxygen present. Additionally, the volcanic eruptions released nitrogen, water vapor, and small amounts of methane and ammonia.

Highlight: The early Earth's atmosphere was predominantly composed of carbon dioxide, with no oxygen present.

Vocabulary: Volcanic eruptions - The ejection of molten rock, ash, and gases from a volcano.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

View

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Subjects

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Chemistry

/

Overview

/

Overview

How Earth's Air Changed, Greenhouse Gases Hurt, and Ways to Help!

user profile picture

Annie Owen-Stiff

@annieowenstiff_dvtk

·

11 Followers

Follow

The Earth's atmosphere has undergone significant changes over billions of years, evolving from a primarily carbon dioxide-rich environment to its current composition. This evolution has been influenced by various factors, including volcanic activity, the emergence of life, and human activities.

  • Evolution of the Earth's atmosphere over billion years involved three main phases
  • Early atmosphere was dominated by CO₂ with virtually no oxygen
  • Plant evolution and photosynthesis led to increased oxygen levels
  • Impact of greenhouse gases on climate change is significant and ongoing
  • Human activities have accelerated climate change through increased emissions
  • Various methods to reduce carbon footprints and emissions are being implemented

7/9/2022

259

 

11

 

Chemistry

10

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

Phase 2: Formation of Oceans and Carbon Sequestration

The second phase of atmospheric evolution was marked by significant changes in the Earth's surface and composition. This period saw the formation of oceans and the beginning of carbon sequestration processes.

As the Earth cooled, the water vapor in the atmosphere began to condense, forming the planet's oceans. This process had a profound effect on the atmospheric composition, as large amounts of CO₂ were removed from the air by dissolving in the newly formed oceans. The dissolved CO₂ underwent a series of chemical reactions, forming carbon precipitates that settled on the seabed as sediments.

During this phase, the first green plants and algae evolved. These organisms played a crucial role in further reducing atmospheric CO₂ levels by absorbing it for photosynthesis. Some of the carbon absorbed by these early life forms eventually became fossil fuels after their death and burial.

Definition: Carbon sequestration - The process of capturing and storing atmospheric carbon dioxide.

Example: The formation of limestone deposits on the ocean floor is an example of natural carbon sequestration.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

Carbon Footprints and Reduction Methods

Carbon footprints are a measure of the total greenhouse gas emissions caused directly and indirectly by an individual, organization, event, or product. Measuring carbon footprints can be challenging due to the many factors involved, from sourcing materials to disposal.

There are various methods to reduce carbon footprints and emissions, including:

  1. Transitioning to renewable energy sources
  2. Implementing more efficient processes to conserve energy
  3. Reducing waste production
  4. Government regulations on emissions

Governments often implement policies to cap emissions of greenhouse gases and may tax companies based on the amount of greenhouse gases they produce.

Definition: Carbon footprint - The total amount of greenhouse gases produced to directly and indirectly support human activities, usually expressed in equivalent tons of carbon dioxide (CO₂).

Example: Choosing to cycle instead of drive, or using energy-efficient appliances are ways individuals can reduce their carbon footprint.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

Phase 3: Oxygen-Rich Atmosphere

The third phase of atmospheric evolution saw a dramatic increase in oxygen levels, leading to the composition similar to what we have today.

About 200 million years ago, the Earth's atmosphere reached a composition similar to its current state. This transformation was primarily driven by the proliferation of plants and algae, which produced oxygen as a byproduct of photosynthesis.

The current atmosphere consists of approximately 80% nitrogen and 20% oxygen, with small amounts of other gases, including CO₂, noble gases, and water vapor.

Quote: "200 million years ago atmosphere reached a composition similar to one it is today."

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

Greenhouse Gases and Climate Change

Greenhouse gases, primarily CO₂, methane, and water vapor, play a significant role in regulating Earth's temperature. These gases act as an insulating layer in the Earth's atmosphere, trapping heat and contributing to the greenhouse effect.

The impact of greenhouse gases on climate change is substantial. These gases don't absorb short-wavelength radiation but do absorb and re-radiate long-wavelength radiation in all directions, including back to Earth. This process, known as the greenhouse effect, warms the planet.

Human activities have significantly increased the concentration of greenhouse gases in the atmosphere, leading to accelerated climate change. Some key factors contributing to this increase include:

  1. Burning of fossil fuels
  2. Deforestation, which reduces CO₂ absorption through photosynthesis
  3. Agriculture, particularly livestock farming, which increases methane emissions
  4. Waste creation and decomposition, releasing CO₂ and methane

Highlight: The impact of greenhouse gases on climate change is evident in rising sea levels, changes in rainfall patterns, and increased frequency and severity of storms.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

Phase 1: The Early Atmosphere

The first billion years of Earth's history saw the formation of its early atmosphere through intense volcanic activity. This period was characterized by the release of various gases that would shape the planet's future.

During this phase, the Earth's surface was covered in volcanoes that erupted continuously, releasing large amounts of gases into the atmosphere. These gases primarily consisted of carbon dioxide (CO₂), with virtually no oxygen present. Additionally, the volcanic eruptions released nitrogen, water vapor, and small amounts of methane and ammonia.

Highlight: The early Earth's atmosphere was predominantly composed of carbon dioxide, with no oxygen present.

Vocabulary: Volcanic eruptions - The ejection of molten rock, ash, and gases from a volcano.

PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly
PHASE 1 → first billion years the surface was covered in volcanoes that erupted + released lots of gases, forming early atmosphere. ↓ mostly

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Knowunity is the # 1 ranked education app in five European countries

Knowunity was a featured story by Apple and has consistently topped the app store charts within the education category in Germany, Italy, Poland, Switzerland and United Kingdom. Join Knowunity today and help millions of students around the world.

Ranked #1 Education App

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Download in

App Store

Knowunity is the # 1 ranked education app in five European countries

4.9+

Average App Rating

13 M

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#1

In Education App Charts in 12 Countries

950 K+

Students uploaded study notes

Still not sure? Look at what your fellow peers are saying...

iOS User

I love this app so much [...] I recommend Knowunity to everyone!!! I went from a C to an A with it :D

Stefan S, iOS User

The application is very simple and well designed. So far I have found what I was looking for :D

SuSSan, iOS User

Love this App ❤️, I use it basically all the time whenever I'm studying