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関連する概念動画

Global Climate Change01:50

Global Climate Change

Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
Threats to Biodiversity01:50

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
Microbes and Climate Change01:27

Microbes and Climate Change

Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
Ecological Disturbance02:26

Ecological Disturbance

An ecological disturbance is a temporary disruption in the environment resulting from abiotic, biotic, or anthropogenic factors, causing a pronounced change in an ecosystem. The impact of an ecological disturbance, which can depend on its intensity, frequency, and spatial distribution, plays a significant role in shaping the species diversity within the ecosystem.
What is Evolutionary History?02:35

What is Evolutionary History?

Scientists record evolutionary history by analyzing fossil, morphological, and genetic data. The fossil record documents the history of life on Earth and provides evidence for evolution. However, both fossil and living organisms offer evidence that outlines Earth’s evolutionary history.
Conditions on Early Earth02:06

Conditions on Early Earth

Around 4 billion years ago, oceans began to condense on earth while volcanic eruptions released nitrogen, carbon dioxide, methane, ammonia, and hydrogen into the primordial atmosphere. However, organisms with the characteristics of life were not initially present on earth. Scientists have used experimentation to determine how organisms evolved that could grow, reproduce, and maintain an internal environment.

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Updated: May 21, 2026

Using Generative Art to Convey Past and Future Climate Transitions
06:10

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

地球の生物圏の状態の変化に近づいています.

Anthony D Barnosky1, Elizabeth A Hadly, Jordi Bascompte

  • 1Department of Integrative Biology, University of California, Berkeley, California 94720, USA. barnosky@berkeley.edu

Nature
|June 9, 2012
PubMed
まとめ

地球規模の生態系は,人間の活動による惑星規模の転換点に近づいているかもしれない. 早期警告信号と人間の影響に対処することは,生物学的予測と不可逆的な変化を防ぐために極めて重要です.

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Simulating Temperature in a Soil Incubation Experiment
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Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
09:49

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

関連する実験動画

Last Updated: May 21, 2026

Using Generative Art to Convey Past and Future Climate Transitions
06:10

Using Generative Art to Convey Past and Future Climate Transitions

Published on: March 31, 2023

Simulating Temperature in a Soil Incubation Experiment
08:39

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation
09:49

Prospecting Microbial Strains for Bioremediation and Probiotics Development for Metaorganism Research and Preservation

Published on: October 31, 2019

科学分野:

  • エコロジー エコロジー エコロジー
  • 環境科学 環境科学
  • 気候科学 気候科学

背景:

  • 生態系は,臨界値を超えて突然,不可逆的な変化を呈する.
  • 人間の活動は,地球規模の生物学的変化をますます強要しています.

研究 の 目的:

  • グローバルな生態系における惑星規模の重要な移行の証拠をレビューする.
  • 生物学的予測と早期警告システムの改善の必要性を強調する.
  • 人為的な環境変化の根本的な原因に対処する.

主な方法:

  • 生態学的値と臨界点に関する既存の科学文献のレビュー.
  • 人間の影響に対する地球規模の生態系の反応に関する証拠の分析.
  • 早期警告信号とフィードバックメカニズムについての議論.

主要な成果:

  • 証拠によると,地球規模の生態系は,局所的な臨界点と同様の重要な移行期に接近している可能性があります.
  • 惑星規模の転換点は,人間の累積的な圧力によりあり得ると考えられる.
  • 早期警告信号を特定し,フィードバックループを理解することは不可欠です.

結論:

  • グローバルな生態系が重要な移行を起こす可能性は,緊急に注意を要する.
  • 生物学的予測の改善には,地球的および局所的な早期警告信号の検出が必要です.
  • 人為的な影響の根本的な原因に対処することは,不可逆的な地球規模の変化のリスクを軽減するために不可欠です.