Time History of Atmospheric CO2

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This animated visualization represents a time history of atmospheric carbon dioxide in parts per million (ppm) from 1979 to 2016, and then back in time to 800,000 years before the present.

Construct, analyze, and/or interpret graphical displays of data and/or large data sets to identify linear and nonlinear relationships.

Use graphical displays (e.g., maps, charts, graphs, and/or tables) of large data sets to identify temporal and spatial relationships.

Analyze and interpret data to provide evidence for phenomena.

Analyze data using tools, technologies, and/or models (e.g., computational, mathematical) in order to make valid and reliable scientific claims or determine an optimal design solution.

Apply concepts of statistics and probability (including determining function fits to data, slope, intercept, and correlation coefficient for linear fits) to scientific and engineering questions and problems, using digital tools when feasible.

Ask questions that arise from careful observation of phenomena, models, or unexpected results, to clarify and/or seek additional information.

Ask questions to determine relationships between independent and dependent variables and relationships in models.

Ask questions that arise from careful observation of phenomena, or unexpected results, to clarify and/or seek additional information.

Ask questions to determine relationships, including quantitative relationships, between independent and dependent variables.

The main way that solar energy is captured and stored on Earth is through the complex chemical process known as photosynthesis.

Current models predict that, although future regional climate changes will be complex and varied, average global temperatures will continue to rise. The outcomes predicted by global climate models strongly depend on the amounts of human-generated greenhouse gases added to the atmosphere each year and by the ways in which these gases are absorbed by the ocean and biosphere.

Human activities, such as the release of greenhouse gases from burning fossil fuels, are major factors in the current rise in Earth’s mean surface temperature (global warming). Reducing the level of climate change and reducing human vulnerability to whatever climate changes do occur depend on the understanding of climate science, engineering capabilities, and other kinds of knowledge, such as understanding of human behavior and on applying that knowledge wisely in decisions and activities.

Gradual atmospheric changes were due to plants and other organisms that captured carbon dioxide and released oxygen.

Changes in the atmosphere due to human activity have increased carbon dioxide concentrations and thus affect climate.

Through computer simulations and other studies, important discoveries are still being made about how the ocean, the atmosphere, and the biosphere interact and are modified in response to human activities.

Photoelectric materials emit electrons when they absorb light of a high-enough frequency.

Empirical evidence is required to differentiate between cause and correlation and make claims about specific causes and effects.

The significance of a phenomenon is dependent on the scale, proportion, and quantity at which it occurs.

Time, space, and energy phenomena can be observed at various scales using models to study systems that are too large or too small.

Empirical evidence is needed to identify patterns.

Change and rates of change can be quantified and modeled over very short or very long periods of time. Some system changes are irreversible.

Phenomena may have more than one cause, and some cause and effect relationships in systems can only be described using probability.

Graphs, charts, and images can be used to identify patterns in data.

Stability might be disturbed either by sudden events or gradual changes that accumulate over time.

Time History of Atmospheric CO2

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