🌍ap world history: modern review

Greenhouse Gases Emission

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

Greenhouse gases emission refers to the release of gases such as carbon dioxide, methane, and nitrous oxide into the atmosphere, which trap heat and contribute to global warming. This phenomenon has profound implications for environmental change, economic systems, and global policies aimed at addressing climate change in a world increasingly interconnected through globalization.

5 Must Know Facts For Your Next Test

  1. Greenhouse gases are primarily released through human activities such as fossil fuel combustion for energy, deforestation, and industrial processes.
  2. Carbon dioxide (CO2) is the most significant greenhouse gas emitted by human activities, accounting for about three-quarters of emissions globally.
  3. Methane (CH4), another potent greenhouse gas, is released from agricultural practices, landfills, and natural gas production and is over 25 times more effective than CO2 at trapping heat over a 100-year period.
  4. The increase in greenhouse gas emissions has led to rising global temperatures, with widespread consequences including extreme weather events, rising sea levels, and disruptions to ecosystems.
  5. International agreements like the Paris Agreement aim to limit greenhouse gas emissions and promote global cooperation in addressing climate change.

Review Questions

  • How do human activities contribute to greenhouse gases emission and what are the primary gases involved?
    • Human activities significantly contribute to greenhouse gases emission mainly through the burning of fossil fuels for energy production, deforestation for agriculture and urban development, and various industrial processes. The primary gases involved include carbon dioxide (CO2), which comes from burning coal, oil, and natural gas; methane (CH4), produced from agriculture and waste management; and nitrous oxide (N2O), which is released from fertilizers. This combination of emissions plays a crucial role in increasing atmospheric concentrations of greenhouse gases.
  • Evaluate the impact of greenhouse gases emission on global warming and its potential consequences for ecosystems and societies.
    • Greenhouse gases emission leads to enhanced greenhouse effect, causing global warming that affects climate patterns worldwide. Rising temperatures can result in more frequent and severe weather events like hurricanes and droughts, threatening ecosystems and biodiversity. Additionally, these changes can disrupt food production systems, leading to food insecurity and heightened competition for resources among societies. Addressing these emissions is essential to mitigate these adverse impacts.
  • Synthesize the international response to greenhouse gases emission through agreements such as the Paris Agreement and assess their effectiveness.
    • The international response to greenhouse gases emission has been significantly shaped by agreements like the Paris Agreement, which seeks to unite countries in combating climate change by limiting global warming to well below 2 degrees Celsius. While these agreements have fostered global cooperation and commitments to reduce emissions, their effectiveness varies as nations face challenges in balancing economic growth with sustainability. The success of these efforts relies on countries not only setting ambitious targets but also implementing policies that promote renewable energy use, enhance energy efficiency, and transition toward sustainable development practices.

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