Yes, the current atmospheric concentration of carbon dioxide on Earth is around 415 parts per million (ppm), which is the highest it has been in at least the past 800,000 years. This increase in CO2 levels is primarily due to human activities such as burning fossil fuels and deforestation.
Atmospheric ozone concentration is measured in parts per million.
According to the National Oceanic and Atmospheric Administration (NOAA), the daily average concentration of carbon dioxide in Earth's atmosphere surpassed 400 parts per million for the first time in human history. The world emits 2.4 million pounds of CO2 per second.
Carbon dioxide levels in the atmosphere in 1960 were around 315 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
No, the current atmospheric concentration of carbon dioxide is approximately 0.041% (410 parts per million). A level of 0.06% would be significantly higher and is closer to historical levels during certain periods in Earth's past.
Concentration of ozone is about 380 ppm. This is the natural range of ozone.
The present level of atmospheric carbon dioxide is approximately 380 parts per million and rising rapidly due to human activities such as burning fossil fuels, deforestation and cement manufacture. Until the beginning of the Industrial Age, the long term average concentration of carbon dioxide was in the range 260 to 280 ppm, falling to around 160 ppm during cold periods, but never as high as the present level during all human history.
Carbon dioxide levels increased by approximately 15-20 parts per million (ppm) from 1980 to 2000. This is based on data from the Mauna Loa Observatory, one of the longest-running sites measuring atmospheric CO2 concentrations.
Over the past 50 years, atmospheric carbon dioxide concentrations have increased from approximately 320 parts per million (ppm) in 1958 to approx. 400 ppm (parts per million) or 0.04% in 2013. See the link below for a detailed figure (Figure 1, the one most to the right) based on 7 different global measuring locations. Also included is a link to an informative video on CO2 increase over the past 800,000 years to today, from the Mauna Loa, Hawaii atmospheric monitoring station.
No, 310 ppm (parts per million) of carbon dioxide is considered a high concentration in the atmosphere. The current level of atmospheric CO2 is over 400 ppm, primarily due to human activities such as burning fossil fuels. This increase is contributing to global warming and climate change.
Carbon dioxide levels in the atmosphere in 1993 were around 360 ppm (parts per million). Levels now (2013) are approaching 400 ppm.
The projected change in atmospheric carbon in one year is expected to increase by approximately 2.5 parts per million (ppm).