Claim: The trend in CO2 at Mauna Loa is practically identical to the global trend because CO2 mixes well throughout the atmosphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: "Up-to-date weekly average CO 2 at Mauna Loa".

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Increases in atmospheric concentrations of CO 2 and other long-lived greenhouse gases such as methane, nitrous oxide and ozone have correspondingly strengthened their absorption and emission of infrared radiation, causing the rise in average global temperature since the mid-20th century.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: Figure 4 shows seasonal and annual changes in CO2 concentration measured at Mauna Loa, Hawaii from 1987 to 1990.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: An example is the mixing of atmospheric gases into the oceans.

Relevance (1 = gold evidence, 0 = mined hard negative): 1
Passage: This figure accounts for CO 2 molecules being removed from the atmosphere by mixing into the ocean, photosynthesis, and other processes.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Keeling’s Tellus article of 1960 presented the first monthly CO 2 records from Mauna Loa and Antarctica (1957 to 1960), finding a “distinct seasonal cycle…and possibly, a worldwide rise in CO2 from year to year.” By the 1970s, it was well established that the increase of atmospheric carbon dioxide was ongoing and due to anthropogenic emissions.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The measurements collected at Mauna Loa Observatory show a steady increase in mean atmospheric CO 2 concentration from 313 parts per million by volume (ppmv) in March 1958 to 406 ppmv in November 2018, with an increase of ~2 ppmv CO 2 per year.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The Keeling Curve is a graph of the accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: The data collection started by Keeling and continued at Mauna Loa is the longest continuous record of atmospheric carbon dioxide in the world and is considered a reliable indicator of the global trend in the mid-level troposphere.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Measurements at Mauna Loa have been ongoing since then.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: Measurements of CO 2 from the Mauna Loa observatory show that concentrations have increased from about 313 parts per million (ppm) in 1960, passing the 400 ppm milestone on May 9, 2013.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: In May 2013, two independent teams of scientists measuring CO near the summit of Mauna Loa in Hawaii recorded that the amount of carbon dioxide in the atmosphere exceeded 400 parts per million, probably for the first time in more than 3 million years of Earth history.

Relevance (1 = gold evidence, 0 = mined hard negative): 0
Passage: "Coherence established between atmospheric carbon dioxide and global temperature".