History of Carbon Dioxide Concentrations – Earth …

Direct scientific measurement of the parts per million (PPM) of atmospheric carbon dioxide has been occurring for over 60 years, but scientists have reconstructed measurements dating back millions of years using what might …

Trends in CO2

Trends in Atmospheric Carbon Dioxide (CO 2) Mauna Loa, Hawaii; Global; CO 2 Animation; CO 2 Emissions; Recent trend; Full Record; Growth Rate; Data; ... The annual mean rate of growth of CO 2 in a given year is the difference in concentration between the end of December and the start of January of that year.

Carbon dioxide concentrations in the atmosphere

The data contains concentrations of carbon dioxide in the atmosphere from hundreds of thousands of years ago through 2021, measured in parts per million (ppm). The data come from a variety of historical ice core …

Climate Change Indicators: Atmospheric Concentrations of …

This figure shows concentrations of carbon dioxide in the atmosphere from hundreds of thousands of years ago through 2023, measured in parts per million (ppm). The data come from a variety of historical ice core studies and recent air monitoring sites around the world. Each line represents a different data source.

Overview: Carbon Dioxide (CO2) Data Sets

Directly measured and continuous records of atmospheric carbon dioxide (CO2) extend back to 1958. CO2 has also been measured in ancient air samples trapped in ice cores, and these records extend back hundreds of …

You Asked: Dinosaurs Survived When CO2 Was

Although no one was around to measure the atmosphere's CO2 concentration millions of years ago, paleoclimatologists can reconstruct past temperature and carbon dioxide levels using ice cores, tree rings, corals, ancient pollen, and sedimentary rocks. These natural recorders of climate fluctuations can also reveal how various animals and ...

NASA SVS | Atmospheric Carbon Dioxide Concentrations

A plot of global atmospheric carbon dioxide levels from the Mauna Loa Observatory and Antarctic Ice Cores. The visualization starts by showing the Mauna Loa data which begins in 1958. There is a seasonal variation (maximum in May and minimum in September) and a steady year over year rise. The graph transforms from the monthly view to a line plot (The Keeling …

Atmospheric CO2 ppm by year 1959-2023 | Statista

Average annual atmospheric levels of carbon dioxide (CO₂) reached a record high of 421.08 parts per million (ppm) in 2023. Monthly atmospheric CO₂ concentrations peaked that year in May, at...

Trends in CO2

GML conducts research on greenhouse gas and carbon cycle feedbacks, changes in aerosols, and surface radiation, and recovery of stratospheric ozone.

Graph-Dashboard: Atmospheric Carbon Dioxide

The modern record of atmospheric carbon dioxide levels began with observations recorded at Mauna Loa Observatory in Hawaii. This graph shows the station's monthly average carbon dioxide measurements since 1958 in parts per million (ppm). The seasonal cycle of highs and lows (small peaks and valleys) is driven by Northern Hemisphere summer ...

Atmospheric carbon dioxide concentrations over the past …

Knowledge of the evolution of atmospheric carbon dioxide concentrations throughout the Earth's history is important for a reconstruction of the links between climate and radiative forcing of the ...

Atmospheric CO2 over the last 1000 years: A …

[1] We report a decadally resolved record of atmospheric CO 2 concentration for the last 1000 years, obtained from the West Antarctic Ice Sheet (WAIS) Divide shallow ice core. The most prominent feature of the pre-industrial period is a rapid ∼7 ppm decrease of CO 2 in a span of ∼20–50 years at ∼1600 A.D. This observation confirms the timing of an abrupt …

History of Carbon Dioxide Concentrations – Earth Archives

A fundamental measure of the intensity of human-induced warming can be found in the amount of carbon dioxide (CO2) in the atmosphere. Direct scientific measurement of the parts per million (PPM) of atmospheric carbon dioxide has been occurring for over 60 years, but scientists have reconstructed measurements dating back millions of years using ...

Climate Change: Atmospheric Carbon Dioxide

Atmospheric carbon dioxide (CO 2) in parts per million (ppm) for the past 800,000 years based on ice-core data (light purple line) compared to 2022 concentration (bright purple dot). The peaks and valleys in the line show ice …

Trends in CO2

Trends in Atmospheric Carbon Dioxide (CO 2) Mauna Loa, Hawaii; Global; CO 2 Animation; CO 2 Emissions; History of atmospheric carbon dioxide from 800,000 years ago until the end of the most recent GLOBALVIEW+ CO2 collection. Download full-resolution version of this animation (warning: large file, ~50 )

Time History of Atmospheric CO2

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. ... HS-ESS2.D3: Changes in the atmosphere due to human activity have increased carbon dioxide concentrations and thus affect climate. HS-ESS2.D4: ...

NASA SVS | Global Atmospheric Carbon Dioxide (CO₂)

NASA's Orbiting Carbon Observatory, 2 (OCO-2) provides the most complete dataset tracking the concentration of atmospheric carbon dioxide (CO₂), the main driver of climate change. Every day, OCO-2 measures sunlight reflected from Earth's surface to infer the dry-air column-averaged CO₂ mixing ratio and provides around 100,000 cloud-free ...

The Carbon Cycle and Atmospheric Carbon Dioxide

3.3.1 Geological History of Atmospheric CO 2 201 3.3.2 Variations in Atmospheric CO 2 during ... The Carbon Cycle and Atmospheric Carbon Dioxide 185 ... circa 1750, atmospheric carbon dioxide (CO 2) concentration was 280 ±10 ppm for several thousand years. It has risen continuously since then, reaching 367 ppm in 1999. The present atmospheric ...

Atmospheric CO2, CH4 and N2O records over the past 60 …

The Last Millennium. The general trend of the atmospheric concentration of the three greenhouse gases reconstructed based on ice-core analyses gives a consistent picture of an almost constant level during the last millennium, terminated by the dramatic anthropogenic increase during about the last 250 years. the records using the results published by the Intergovernmental Panel on …

The Keeling Curve

See the Mauna Loa record in other graphic forms at the Scripps CO 2 site. The Keeling Curve is the record of atmospheric CO 2 from the Mauna Loa Observatory, starting in 1958.. Scripps CO 2 measurements at Mauna Loa are currently supported by Schmidt Sciences with supplemental support from Earth Networks, a technology company collaborating with Scripps to expand the …

Atmospheric Carbon Dioxide | GlobalChange.gov

Caption: The sawtooth pattern demonstrates the fluctuation of atmospheric concentration of carbon dioxide over seasonal cycles, driven largely by the terrestrial biosphere. There is an overall upward trend since data collection began. Global monthly average concentrations of carbon dioxide have risen from around 337 parts per million in 1979 (averaged over the year) …

Toward a Cenozoic history of atmospheric CO2 | Science

Anthropogenic carbon dioxide (CO 2) emissions have driven an increase in the global atmospheric CO 2 concentration from 280 parts per million (ppm) before industrialization to an annual average of 419 ppm in 2022, corresponding to an increase in global mean surface temperature (GMST) of 1.1°C over the same period. If global CO 2 emissions continue to rise, …

A 40-million-year history of atmospheric CO2

The alkenone–pCO 2 methodology has been used to reconstruct the partial pressure of ancient atmospheric carbon dioxide (pCO 2) for the past 45 million years of Earth's history (Middle Eocene to Pleistocene epochs).The present …

History of Climate Science Research

With the model, they found that more carbon dioxide in the atmosphere causes higher temperatures at Earth's surface. ... that it was certain that "human activities are substantially increasing the atmospheric concentrations of greenhouse gases."According to the report, greenhouse gas increases had caused temperature to increase by 0.3° to 0.6 ...

Atmospheric CO2 at Mauna Loa Observatory

Comments from expert scientist: The graphs are visually appealing and information is clearly presented. The data sources and methodology of calculating the CO2 concentrations are described very well and references are provided for additional information. The video of CO2 concentration history is especially neat.

Atmospheric CO2 Concentration | WESR

Observed concentrations of carbon dioxide (CO2) in the atmosphere have exceeded 416 parts per million (ppm) threshold at the end of 2021. This is a wakeup call about the constantly rising levels of this greenhouse gas, which is released into the atmosphere by fossil fuel burning and other human activities and is the main driver of climate change. ...

A New 66 Million-Year History of Carbon Dioxide …

A massive new review of ancient atmospheric carbon-dioxide levels and corresponding temperatures lays out a daunting picture of where the Earth's climate may be headed. The study covers geologic records spanning the past …

Temperature and CO2 concentration in the atmosphere …

This visualization graphically displays temperature and CO2 concentration in the atmosphere as derived from ice core data from 400,000 years ago to 1950. The data originates from UNEP GRID Arendal's graphic library of CO2 levels from Vostok ice core. Click to View.

Trends in CO2

The carbon dioxide data on Mauna Loa constitute the longest record of direct measurements of CO 2 in the atmosphere. They were started by C. David Keeling of the Scripps Institution of Oceanography in March of 1958 …