Continual updates of daily CO2 levels recorded at the Mauna Loa Observatory in Hawaii. ... Units = parts per million (ppm). ... <看更多>
「co2 level ppm」的推薦目錄:
co2 level ppm 在 What are safe levels of CO and CO2 in rooms? - Kane ... 的相關結果
CO2 ; 250-400ppm, Normal background concentration in outdoor ambient air ; 400-1,000ppm, Concentrations typical of occupied indoor spaces with good air exchange. ... <看更多>
co2 level ppm 在 Carbon Dioxide | Vital Signs - NASA Climate Change 的相關結果
The time series below shows global distribution and variation of the concentration of mid-tropospheric carbon dioxide in parts per million (ppm). ... <看更多>
co2 level ppm 在 Carbon dioxide peaks near 420 parts per million at Mauna ... 的相關結果
Atmospheric carbon dioxide measured at NOAA's Mauna Loa ... May at a monthly average of 419 parts per million (ppm), the highest level since ... ... <看更多>
co2 level ppm 在 Carbon Dioxide (CO2): Environmental Health in Minnesota 的相關結果
The outdoor concentration of carbon dioxide is about 400 parts per million (ppm) or higher in areas with high traffic or industrial activity. ... <看更多>
co2 level ppm 在 Trends in atmospheric concentrations of CO2 (ppm), CH4 ... 的相關結果
Trends in atmospheric concentrations of CO2 (ppm), CH4 (ppb) and N2O (ppb), between 1800 ... CO2 concentration provided by National Oceanic and Atmospheric ... ... <看更多>
co2 level ppm 在 Carbon dioxide in Earth's atmosphere - Wikipedia 的相關結果
Global annual mean CO 2 concentration has increased by 50% since the start of the Industrial Revolution, from 280 ppm during the ... ... <看更多>
co2 level ppm 在 Climate Milestone: Earth's CO2 Level Passes 400 ppm 的相關結果
Two teams of scientists at the Mauna Loa Observatory in Hawaii have been measuring carbon dioxide concentration there for decades, and have ... ... <看更多>
co2 level ppm 在 Atmospheric CO2 concentrations worldwide 1959-2021 的相關結果
The atmospheric level of carbon dioxide has been steadily rising since the 1960's. In 2021, atmospheric carbon dioxide levels reached a high ... ... <看更多>
co2 level ppm 在 Climate Milestone: Earth's CO2 Level Passes 400 ppm 的相關結果
Climate Milestone: Earth's CO2 Level Passes 400 ppm ... Today, greenhouse gasses in the Earth's atmosphere are at their highest since the Pliocene Era, when sea ... ... <看更多>
co2 level ppm 在 Carbon Dioxide Health Hazard Information Sheet - USDA 的相關結果
CO2 levels in outdoor air typically range from 300 to 400 ppm (0.03% to 0.04%) but can be as high as 600-900 ppm in metropolitan areas. Although it is most ... ... <看更多>
co2 level ppm 在 How the World Passed a Carbon Threshold and Why It Matters 的相關結果
In the big picture, 400 ppm is a low-to-middling concentration of CO2 for the planet Earth. Some 500 million years ago, when the number of ... ... <看更多>
co2 level ppm 在 CO2 Concentration in the Atmosphere Highest Ever at 419 的相關結果
CO2 Concentration in the Atmosphere Reached Its Highest Level Ever This Year at 419 ppm. Burning Fossil is the Largest Contributor. ... <看更多>
co2 level ppm 在 Proposed Residential Indoor Air Quality Guidelines for Carbon ... 的相關結果
Carbon dioxide levels > 984 ppm were associated with a lack of concentration (da Conceição Ferreira and Cardoso 2014) and those > 1500 ppm with increased ... ... <看更多>
co2 level ppm 在 CO2 Levels: Current & Historic Atmospheric Carbon Dioxide ... 的相關結果
See how CO2 levels have never been higher with this fully interactive Atmospheric Carbon ... Atmospheric CO2 concentrations (ppm) derived from in situ air ... ... <看更多>
co2 level ppm 在 CO2 Crosses 400 ppm Threshold Throughout Northern ... 的相關結果
For the first time, observed concentrations of carbon dioxide (CO2) in the atmosphere topped the symbolic 400 parts per million (ppm) monthly average ... ... <看更多>
co2 level ppm 在 Atmospheric CO2 levels may rise 50% higher than pre ... 的相關結果
The annual average CO2 concentration for 2021 could be around 416.3ppm, according to Meteorological Office estimates. An annual rise of about ... ... <看更多>
co2 level ppm 在 Carbon Dioxide Concentration - Comfort Levels - The ... 的相關結果
Normal CO2 Levels · normal outdoor level: 350 - 450 ppm · acceptable levels: < 600 ppm · complaints of stuffiness and odors: 600 - 1000 ppm · ASHRAE and OSHA ... ... <看更多>
co2 level ppm 在 Carbon Dioxide and Carbon Dioxide Monitors 的相關結果
1500 ppm are likely to be indicative of poor ventilation (CIBSE, 2020, AIVC, 2021). ... It is possible to measure CO2 levels with a CO2 monitor. ... <看更多>
co2 level ppm 在 Energy Saving Fact Sheet Ventilation and Indoor Air Quality 的相關結果
door air carbon dioxide concentration of 350 ppm and good mixing of the indoor air. This seems sim- ple enough but does require some steady conditions. ... <看更多>
co2 level ppm 在 Atmospheric CO2 Passes 420 PPM for First Time Ever 的相關結果
The concentration of atmospheric carbon dioxide surged past 420 parts per million for the first time in recorded history this past weekend, ... ... <看更多>
co2 level ppm 在 Atmospheric carbon dioxide at record high levels despite ... 的相關結果
The annual average CO2 concentration for 2021 is forecast to be 416.3 ± 0.6 ppm, an increase of 2.29 ± 0.55 ppm from 2020. Although this would ... ... <看更多>
co2 level ppm 在 What is the average level of carbon monoxide in homes? - US ... 的相關結果
Levels in HomesAverage levels in homes without gas stoves vary from 0.5 to 5 parts per million (ppm). Levels near properly adjusted gas ... ... <看更多>
co2 level ppm 在 Carbon dioxide levels will soar past the 410 ppm milestone in ... 的相關結果
We will pass yet another unwelcome milestone this year. The average concentration of carbon dioxide in the atmosphere is likely to rise by ... ... <看更多>
co2 level ppm 在 Carbon dioxide is halfway to doubling pre-industrial levels 的相關結果
Halfway to doubling preindustrial CO2. CO2 concentration at the Mauna Loa Observatory reached a daily record of 421.21 Parts Per Million (PPM) ... ... <看更多>
co2 level ppm 在 CDC - NIOSH Publications and Products - CDC 的相關結果
Basis for revised IDLH: The revised IDLH for carbon dioxide is 40,000 ppm based on acute inhalation toxicity data in humans [Aero 1953; Flury and Zernik 1931; ... ... <看更多>
co2 level ppm 在 Greenhouse gases - CSIRO 的相關結果
The global annual mean carbon dioxide level in 2019 was 410 parts per million (ppm). ... Right: Global mean CO2 concentration and global mean greenhouse gas ... ... <看更多>
co2 level ppm 在 Policies Must Be Based on 350 ppm and 1 Degree Celsius to ... 的相關結果
It Requires Us to Return Atmospheric CO2 Levels to Below 350 ppm by 2100. In order to protect our planet's climate system and vital natural resources on ... ... <看更多>
co2 level ppm 在 Met Office: Atmospheric CO2 now hitting 50% higher than pre ... 的相關結果
Overall, the annual average CO2 concentration for 2021 is predicted to be 416.3ppm (±0.6). With the annual rise being about 2.5ppm – even ... ... <看更多>
co2 level ppm 在 Dynamic of Changes in Carbon Dioxide Concentration in ... 的相關結果
Detected high levels of CO2 concentrations (above 3000 ppm) indicated improper ventilation and poor air quality in tested bedrooms. ... <看更多>
co2 level ppm 在 Inadequate Ventilation and High CO2 Levels - OSSTF 的相關結果
Levels of 600-800 ppm are typical in office environments. Guidelines suggest CO2 levels do not exceed 1000 ppm (700 ppm above outdoor levels), ... ... <看更多>
co2 level ppm 在 What is the ideal level of carbon dioxide in the atmosphere for ... 的相關結果
As humanity evolved over the past several hundred thousand years, atmospheric CO2 cycled between about 200 and 300 ppm. The preindustrial level ... ... <看更多>
co2 level ppm 在 It's Official: Atmospheric CO2 Just Exceeded 415 ppm For The ... 的相關結果
This weekend, sensors in Hawaii recorded Earth's atmospheric concentration of carbon dioxide (CO2) passing 415 parts per million (ppm) for ... ... <看更多>
co2 level ppm 在 Carbon dioxide levels now higher than at any time in past 3.6 ... 的相關結果
According to the NOAA report, released April 7, 2021, the global average for CO2 in the atmosphere in 2020 was 412.5 parts per million (ppm) in ... ... <看更多>
co2 level ppm 在 Carbon dioxide levels are higher than they've been at any ... 的相關結果
NOAA reported that the global average of atmospheric CO2 hit 412.5 parts per million (ppm) in 2020, a rise of 2.6 ppm from 2019, the fifth- ... ... <看更多>
co2 level ppm 在 Low Level Carbon Dioxide Indoors—A Pollution Indicator or a ... 的相關結果
reported for 8 h, for schools and offices), which suggest that CO2 levels <1000 ppm represent good indoor air quality and <1500 ppm are ... ... <看更多>
co2 level ppm 在 CO2 concentration levels hit record high, show no impact from ... 的相關結果
The concentration of carbon dioxide in Earth's atmosphere reached ... saying daily levels have surpassed 420 PPM on several occasions. ... <看更多>
co2 level ppm 在 Average daily, day-and night-time CO 2 concentrations (ppm ... 的相關結果
The mean CO2 concentration was highest at the industrial site, not at the densely populated urban center (urban: 429.2 ± 8.7 ppm, rural: 421.2 ± 10.0 ppm, ... ... <看更多>
co2 level ppm 在 CO2 Sensor Range: PPM and Percentage Compared 的相關結果
It is designed to monitor carbon dioxide levels in cell incubators to manage ideal cell and tissue growth, typically at 5%. 4. Monitoring CO2 ... ... <看更多>
co2 level ppm 在 Why Measure Carbon Dioxide Inside Buildings? 的相關結果
ASHRAE recommends indoor CO2 levels not exceed the outdoor concentration by more than about 600 ppm. The relationship between CO2 levels and outside air ... ... <看更多>
co2 level ppm 在 7. Is the current level of atmospheric CO2 concentration ... 的相關結果
Those suggest that the concentration of CO2 last approached 400 ppm about 3 to 5 million years ago, a period when global average surface temperature is ... ... <看更多>
co2 level ppm 在 Earth's carbon dioxide levels hit 4.5 million-year high - Axios 的相關結果
The amount of carbon dioxide in the Earth's atmosphere has reached its annual peak, climbing to 419 parts per million (ppm) in May, ... ... <看更多>
co2 level ppm 在 CO₂ monitoring and indoor air quality - REHVA Journal 的相關結果
Carbon dioxide is a colourless and odourless gas. It is a natural component of ambient air, at a concentration of around 400 ppm (parts per million). ... <看更多>
co2 level ppm 在 Accumulation of metabolic carbon dioxide (CO2) in a vehicle ... 的相關結果
Perisly [3] reported that CO2 levels in the outdoor air in an urban area could reach up to 500 ppm. According to [4], the annual CO2 concentration in Beijing ... ... <看更多>
co2 level ppm 在 NOAA: Carbon Dioxide Peaks Near 420 ppm at Mauna Loa ... 的相關結果
... Mauna Loa Atmospheric Baseline Observatory peaked for 2021 in May at a monthly average of 419 parts per million (ppm), the highest level ... ... <看更多>
co2 level ppm 在 Indoor Carbon Dioxide Levels and Your Health | IndoorDoctor 的相關結果
Why Carbon Dioxide Matters · 250 – 350 ppm + background (normal) outdoor air level · 350- 1,000 ppm – typical level found in occupied spaces with good air ... ... <看更多>
co2 level ppm 在 Carbon-Dioxide In Earth's Atmosphere Spikes To Record Level 的相關結果
The concentration of atmospheric carbon-dioxide surged past 420 parts per million (PPM) for the first time in recorded history this past ... ... <看更多>
co2 level ppm 在 What is the allowable level of carbon dioxide in an ... - ASHRAE 的相關結果
CO2 at very high concentrations (e.g. greater than 5000 ppm) can pose a health risk. Refer to Appendix D, Summary of Selected Air Quality. ... <看更多>
co2 level ppm 在 Research of CO2 concentration in naturally ventilated lecture ... 的相關結果
the quantity of carbon dioxide in a million particles of air – ppm (particle per million). Other words the CO2 concentration is an indicator of the amount ... ... <看更多>
co2 level ppm 在 Climate Change: Carbon Dioxide Level Reaches Milestone 的相關結果
(On Venus, where carbon dioxide concentrations in the atmosphere reach 30,000 ppm, the average surface temperature is a toasty 864 F (462 C). ... <看更多>
co2 level ppm 在 Carbon dioxide levels hit landmark at 415 ppm, highest in ... 的相關結果
Carbon dioxide levels in Earth's atmosphere hit a stunning milestone over the weekend. Data from the Mauna Loa Observatory in Hawaii showed ... ... <看更多>
co2 level ppm 在 We Just Breached the 410 PPM Threshold for CO2 - Scientific ... 的相關結果
On Tuesday, the Mauna Loa Observatory recorded its first-ever carbon dioxide reading in excess of 410 parts per million (it was 410.28 ppm in ... ... <看更多>
co2 level ppm 在 Ventilation | Coronavirus COVID-19 的相關結果
The CO2 content of the air should, ideally, not be greater than 900 ppm and should in no case exceed the standard of 1200 ppm. If the CO2 concentration ... ... <看更多>
co2 level ppm 在 Global CO2 levels reach a new record high in 2020 despite ... 的相關結果
Compared to 2019, the CO2 levels have increased by at least 2-3 ppm (parts per million). Carbon dioxide (CO2) is a very well-known ... ... <看更多>
co2 level ppm 在 Why can measuring CO2 levels help us fight COVID-19 的相關結果
The normal level of CO2 in outdoor air is 400 ppm (parts per million). An increase of 400 ppm compared to the base rate (i.e. a value of 800 ... ... <看更多>
co2 level ppm 在 State of the Climate 2020 - Bureau of Meteorology 的相關結果
The global annual mean CO2 level in 2019 was 410 parts per million (ppm), ... to 1750 due to the long-lived greenhouse gases carbon dioxide, methane, ... ... <看更多>
co2 level ppm 在 What does 400 ppm look like? - Carbon Visuals 的相關結果
A concentration of 400 ppm means that for every million air particles, 400 of them are carbon dioxide molecules (0.04%). ... <看更多>
co2 level ppm 在 CO2 PPM - Trends in Atmospheric Carbon Dioxide - DataHub 的相關結果
CO2 PPM - Trends in Atmospheric Carbon Dioxide. Two main series are provided: the Mauna Loa series (which has the longest continuous series since 1958) and ... ... <看更多>
co2 level ppm 在 Earth's CO2 Level Highest In 4 Million Years At 419 PPM In ... 的相關結果
Last time our planet's atmosphere saw similar CO2 levels was during the Pliocene period, roughly 4.1 to 4.5 million years ago. ... <看更多>
co2 level ppm 在 Continuous Carbon Dioxide Measurements in a Rural Area in ... 的相關結果
concentration of 384.2 ppm, with 9.8-ppm variability. The mean maximum concentration ... mean CO2 levels increase in spring, peaking in May at. 388.5 ppm. ... <看更多>
co2 level ppm 在 Why 350? - MN350 的相關結果
... that CO2 will need to be reduced from [current levels] to at most 350 ppm. ... officials agree that 350 ppm is the “safe” level of carbon dioxide. ... <看更多>
co2 level ppm 在 Projections for Carbon Dioxide – ACER - Association for ... 的相關結果
By 2100 the atmospheric CO2 concentration (the gas responsible for most temperature change) will be between 540 and 970 ppm depending on the SRES (Special ... ... <看更多>
co2 level ppm 在 The optimal CO2 concentrations for the growth of three ... 的相關結果
Here, we examined the optimal atmospheric CO2 concentration effect on ... with the CO2 concentration at 400, 600, 800, 1000, and 1200 ppm, ... ... <看更多>
co2 level ppm 在 CO2 levels - 350.org 的相關結果
This March, global levels of CO2 passed 400 parts per million. ... Although short-term local measurements of 400 ppm have been recorded previously, this marks the ... ... <看更多>
co2 level ppm 在 415.26 parts per million: CO2 levels hit historic high - Phys.org 的相關結果
While there is some disagreement over what would constitute "safe" atmospheric CO2 levels, there is a broad consensus that 350 ppm—a level ... ... <看更多>
co2 level ppm 在 Carbon Dioxide Concentration Gradients above the Soil ... - jstor 的相關結果
Fuller (1948) measured carbon dioxide concentration gra- dients in forests and grasslands and found concentrations of 730 to 1,810 ppm CO2 immediately above ... ... <看更多>
co2 level ppm 在 Carbon dioxide levels in atmosphere reach record high - The ... 的相關結果
Last year's annual average figure was 413.94ppm – with 2021's level forecast to be about 416.3ppm. Carbon dioxide levels in the atmosphere ... ... <看更多>
co2 level ppm 在 What is the safe upper limit for atmospheric CO2? | Grist 的相關結果
550 ppm would lead to the greatest disaster ever experienced by human civilization -- returning us to temperatures last seen when sea levels ... ... <看更多>
co2 level ppm 在 Indoor CO2 Sensors for COVID-19 Risk Mitigation - National ... 的相關結果
space will bump CO2 levels relative to ambient (outdoor levels, ~450 ppm). • CO2 levels roughly dependent on. # occupants and activity level ... ... <看更多>
co2 level ppm 在 COLUMN-Climate change targets are slipping out of reach 的相關結果
Separate sea-level measurements from a network of observatories around the world show atmospheric CO2 concentrations averaged 407 ppm in ... ... <看更多>
co2 level ppm 在 Not Just a Number - Center for Biological Diversity 的相關結果
Atmospheric concentrations of CO2 must be reduced from current levels of ~392 ppm to at most 350 ppm to avoid dangerous climate change and provide a good ... ... <看更多>
co2 level ppm 在 Rise of Carbon Dioxide Unabated - Scripps Institution of ... 的相關結果
Monthly CO2 values at Mauna Loa first breached the 400 ppm threshold in 2014, and are now at levels not experienced by the atmosphere in several ... ... <看更多>
co2 level ppm 在 Carbon dioxide tops 415 ppm, highest level in human history 的相關結果
On May 12, 2019, carbon dioxide levels in the atmosphere, as measured by instruments on top of Mauna Loa, Hawaii, reached 415 parts per million ... ... <看更多>
co2 level ppm 在 Southern hemisphere joins north in breaching carbon dioxide ... 的相關結果
Together, these measurements show that the atmospheric CO₂ concentration of the entire southern hemisphere is now at or above 400 ppm. It is ... ... <看更多>
co2 level ppm 在 CO2 concentration build-up calculator - GOV.UK 的相關結果
9, External CO2 Concentration, 390, ppm, average CO2 during occ day, 990, ppm. 10. 11, Fresh air ventilation rate per unit ... ... <看更多>
co2 level ppm 在 Antarctica's CO2 Level Tops 400 PPM for First Time in ... 的相關結果
The concentration of heat-trapping CO2 pollution in the atmosphere has passed the 400 parts per million (ppm) threshold in Antarctica for ... ... <看更多>
co2 level ppm 在 Carbon Dioxide Measures Up as a Real Hazard 的相關結果
CARBON dioxide is the fourth most common gas present in the earth's ... an average ambient concentration (in fresh air) of about 350 ppm. ... <看更多>
co2 level ppm 在 Atmospheric CO2 Hits the Highest Concentration Ever Recorded 的相關結果
... in human history that CO2 concentration has exceeded 420 ppm, ... Doubling pre-industrial CO2 levels has a 95% chance of warming the ... ... <看更多>
co2 level ppm 在 CO2 – Why 450 ppm is Dangerous and 350 ppm is Safe 的相關結果
It would be a march of folly.The authors advocate for a target of 350 ppm as the maximum safe concentration of CO2 concentration, which would ... ... <看更多>
co2 level ppm 在 High CO2 levels cause plants to thicken their leaves, which ... 的相關結果
Plant scientists have observed that when levels of carbon dioxide in the ... and Swann simulated with thickened leaves was just 710 ppm. ... <看更多>
co2 level ppm 在 Atmospheric Carbon Dioxide Levels Pass 400 PPM Tipping ... 的相關結果
CO2 levels have passed a major milestone, and are probably going to ... parts per million (ppm) – and it looks like they're not going to. ... <看更多>
co2 level ppm 在 What Earth was like last time CO2 levels were this high 的相關結果
"CO2 in the atmosphere has gone up 100 ppm in my lifetime," said Kathleen Benison, a geologist at West Virginia University who researches past ... ... <看更多>
co2 level ppm 在 April Becomes 1st Month With CO2 Levels Above 400 PPM 的相關結果
The end of April has arrived, and with it, the record for the first month in human history with an average carbon dioxide level in Earth's ... ... <看更多>
co2 level ppm 在 CO2 Levels Breach 400 ppm, To Remain For Our Lifetime 的相關結果
CO2 concentration levels in the atmosphere have risen above 400 parts per million (ppm) for the second year in succession, but this time ... ... <看更多>
co2 level ppm 在 CO2 levels in Earth's atmosphere will be higher than at any ... 的相關結果
By 2025, atmospheric carbon dioxide (CO2) levels will very likely be ... Currently, our CO2 levels are rising at about 2.5 ppm per year, ... ... <看更多>
co2 level ppm 在 Carbon dioxide levels in atmosphere hit record high in May 的相關結果
Monthly average surpassed 414 ppm at NOAA's Mauna Loa Observatory in Hawaii. Date: June 4, 2019; Source: NOAA; Summary: Atmospheric carbon dioxide continued ... ... <看更多>
co2 level ppm 在 Global CO<sub>2</sub> Breaches 400 PPM 的相關結果
... Global Greenhouse Gas Reference Network report that Earth's global average atmospheric carbon dioxide level surpassed 400 ppm in March. ... <看更多>
co2 level ppm 在 A Graphical History of Atmospheric CO2 Levels Over Time - Past 的相關結果
CO2 and Past Climates ... As a point of reference, pre-industrial CO2 levels were around 280 parts per million (ppm) and today, we stand near 420 ... ... <看更多>
co2 level ppm 在 Earth Just Passed 410 PPM CO2 Levels for the First Time in ... 的相關結果
For the first time in human history, atmospheric carbon dioxide levels were measured at 410 parts per million (ppm). The Keeling Curve, a University of ... ... <看更多>
co2 level ppm 在 Case Study of Kastamonu and Ilgaz Mountain National Parks 的相關結果
Although carbon dioxide (CO2) is found in the air at a level of 0-0.03% (0-300 ppm), it is a vital gas in terms of amount and variability. ... <看更多>
co2 level ppm 在 CO2 Tips the Climate Scales - Sciencenter 的相關結果
Up until 1950 the levels of atmospheric CO2 were pretty steady at 300-‐310 ppm (that's parts per million out of all the molecules in the air). As of. 2010, ... ... <看更多>
co2 level ppm 在 How have CO2 levels changed since the industrial revolution? 的相關結果
Carbon dioxide in the atmosphere is now reaching levels 50% higher than ... atmospheric CO2 levels exceeded 417 parts per million (ppm). ... <看更多>
co2 level ppm 在 Mauna Loa Observatory Records 387 ppm CO2 - Green Car ... 的相關結果
I realize I am not a big brain, but if you are comparing Co2 levels should you be comparing samles from a permafost location an active ... ... <看更多>
co2 level ppm 在 Record global carbon dioxide concentrations despite COVID ... 的相關結果
Figure 1 Trend in Atmospheric CO2 concentration. ... It shows that while the increase over one year was around 0.9 ppm during the 1960s it ... ... <看更多>
co2 level ppm 在 Whole-atmospheric monthly CO2 concentration tops 400 ppm 的相關結果
Whole-atmospheric monthly CO2 concentration tops 400 ppm ... Agency (JAXA) have been monitoring carbon dioxide (CO2) and methane (CH4) by ... ... <看更多>
co2 level ppm 在 Indoor CO2: Dumb and dumber? - Yale Climate Connections 的相關結果
What if high levels of indoor CO2 can impair humans' ... subtle declines in thinking ability when carbon dioxide increases to 1,000 ppm, ... ... <看更多>
co2 level ppm 在 The impact of atmospheric CO2 concentration above 400 ppm 的相關結果
The atmospheric carbon dioxide (CO2) concentration at Mauna Loa, Hawaii, where Dr C.D. Keeling started monitoring in 1958, recently exceeded ... ... <看更多>
co2 level ppm 在 Climate Change: Atmospheric Carbon Dioxide 的相關結果
Based on preliminary analysis, the global average atmospheric carbon dioxide in 2020 was 412.5 parts per million (ppm for short), setting a new record high ... ... <看更多>