The high concentration of carbon dioxide (CO2) in the atmosphere is a double-edged sword, because it has an impact on global food security and climate emergency. According to the conclusion of an ...

Figure 1: Time Profile of Atmospheric CO2 Concentration, for given Gaussian emissions pulse. In this scenario, the CO2 concentration peaks at 529ppm for years 180<x<200 (years 2080-2100).

Researchers measured the average atmospheric carbon dioxide to be 421.21 parts per million, which means that humans have reached the halfway point to doubling pre-industrial levels of CO2.

If human CO2 emissions are not strongly reduced, the atmospheric CO2 concentration will further increase by hundreds of ppm by 2100, and average global temperatures will rise several degrees C ...

A previously unexploited source of information is now throwing new light on Earth's climate during the age of dinosaurs.

Atmospheric carbon dioxide (CO2) concentration will soar past a scary threshold this year, exceeding 417 parts per million (ppm) — a 50% increase since the start of widespread industrial ...

If the present-day atmospheric CO2 concentration rose to 20%, "the oceans would likely boil," Lofverstrom said. History shows plants and animals have survived in lower CO2 atmosphere ...

When NOAA began collecting carbon-dioxide measurements in the late 1950s, atmospheric CO2 concentration sat at around 315 PPM. On Saturday, the daily average was measured at 421.21 PPM - the ...