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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.
What is Climate?01:16

What is Climate?

Climate refers to the prevailing weather conditions in a specific area over an extended period. As the saying goes, “Climate is what you expect. Weather is what you get.” Climate is influenced by geographic factors, such as latitude, terrain, and proximity to bodies of water.
Effect of Temperature Change on Reaction Rate02:28

Effect of Temperature Change on Reaction Rate

The Arrhenius equation,
Effects of Temperature on Free Energy02:11

Effects of Temperature on Free Energy

The spontaneity of a process depends upon the temperature of the system. Phase transitions, for example, will proceed spontaneously in one direction or the other depending upon the temperature of the substance in question. Likewise, some chemical reactions can also exhibit temperature-dependent spontaneities. To illustrate this concept, the equation relating free energy change to the enthalpy and entropy changes for the process is considered:
Temperature Dependence on Reaction Rate02:55

Temperature Dependence on Reaction Rate

The Collision Theory
Atoms, molecules, or ions must collide before they can react with each other. Atoms must be close together to form chemical bonds. This premise is the basis for a theory that explains many observations regarding chemical kinetics, including factors affecting reaction rates.
The collision theory is based on the postulates that (i) the reaction rate is proportional to the rate of reactant collisions, (ii) the reacting species collide in an orientation allowing contact between...
Factors Affecting Body Temperature01:28

Factors Affecting Body Temperature

As a nurse, it is vital to understand the factors affecting body temperature to monitor variations and effectively evaluate deviations from regular.
Factors may  include:

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関連する実験動画

Updated: May 9, 2026

Simulating Temperature in a Soil Incubation Experiment
08:39

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

地域パターンの変化にもかかわらず,地球全体の気温変動は増加していない.

Chris Huntingford1, Philip D Jones, Valerie N Livina

  • 1Centre for Ecology and Hydrology, Wallingford OX10 8BB, UK. chg@ceh.ac.uk

Nature
|July 26, 2013
PubMed
まとめ
この要約は機械生成です。

地球温暖化は,全体的な気候の変動性を増加させていないかもしれません. いくつかの地域では,より多くの気温変動が見られるが,地球全体の平均気温異常標準偏差は安定したままであり,一般的な仮定に反している.

さらに関連する動画

Temperature Response of Soil Organic Matter Decomposition Rates: Construction and Applications of a Temperature Gradient Block
07:46

Temperature Response of Soil Organic Matter Decomposition Rates: Construction and Applications of a Temperature Gradient Block

Published on: January 30, 2026

関連する実験動画

Last Updated: May 9, 2026

Simulating Temperature in a Soil Incubation Experiment
08:39

Simulating Temperature in a Soil Incubation Experiment

Published on: October 28, 2022

Temperature Response of Soil Organic Matter Decomposition Rates: Construction and Applications of a Temperature Gradient Block
07:46

Temperature Response of Soil Organic Matter Decomposition Rates: Construction and Applications of a Temperature Gradient Block

Published on: January 30, 2026

科学分野:

  • 気候科学 気候科学
  • 環境科学 環境科学

背景:

  • 社会の気候変動への適応は,変動性の増大と極端な天候によって困難に迫られている.
  • 過去の寒い時期は,現在のいくつかの時期よりも高い温度変動を示した.
  • 現在の地球温暖化が気候の変動性を増しているかどうかについては,議論が続いている.

研究 の 目的:

  • 地球温暖化が現在の地球温暖化変動を増加させているかどうかを調査する.
  • 温度変動の地理的および時間的な傾向を分析する.
  • 気候変動の変動が増加したとの認識の妥当性を評価する.

主な方法:

  • グローバル平均温度異常の時間変化の標準偏差の分析.
  • 過去数十年にわたる年間気温変動の地理的変動の調査.
  • 標準化と絶対的な温度異常値の比較.

主要な成果:

  • 世界平均気温異常標準偏差は安定している.
  • 温度変動の重要な地理的変動が観察されました.
  • 以前は変動が低かった地域では増加が見られ,変動の認識に寄与しています.
  • 絶対温度値を用いた分析は,正常化された異常とは異なり,最小限の変化を示した.

結論:

  • 気候変動の変動が増加しているという認識は,地球規模での増加ではなく,地域的な変化に起因するかもしれない.
  • 温暖化が自動的に全体的な気候変動の変動を増加させるわけではない.
  • この発見は,地球温暖化の上昇が,普遍的に気候変動の変動が高まるという仮定に異議を唱えている.