Australia's bushfires are contributing to one of the biggest annual increases in the concentration of carbon dioxide in the Earth's atmosphere since record-keeping began more than 60 years ago, according to a forecast published by Britain's Met Office on Friday.

While human-caused greenhouse gas emissions are responsible for the bulk of the increase in CO2 levels, Australia's bushfires have made the problem measurably worse, underscoring the impact of the catastrophe on the global climate system.
"A forecast of the atmospheric concentration of carbon-dioxide shows that 2020 will witness one of the largest annual rises in concentration since measurements began at Mauna Loa, in Hawaii, 1958," the Met Office said in a statement.