Aerosols released from Australian bushfires triggers algal blooms

Australia is no stranger to bushfires, however the 2019-2020 season proved to be unprecedented. As of March 2020, the fires burned an estimated 18.6 million hectares (or 186 000 sq km) destroying over 5000 buildings and killed over 400 people. It was estimated that more than a billion animals perished from the bushfires, with several endangered species facing the risk of total extinction.

Based on a new paper, published in Nature, the extreme bushfires across southeast Australia released 715 million tonnes of carbon dioxide into the air – more than double the emissions provided by fire emission inventory datasets.

In southeast Australia, the fires were both intense and extensive. As much as 74 000 sq km of mostly eucalyptus forest, roughly 2.5 times the area of Belgium, was affected. Previous estimates from global inventory datasets of wildfire emissions based on satellite fire data and modelled quantities of standing biomass suggested that the fires released on average 275 million tonnes of carbon dioxide between November 2019 and January 2020.

However, the new analysis indicates that this figure was a gross underestimate. Using data from the Tropomi instrument on board the Copernicus Sentinel-5P satellite, the research team were able to obtain a more accurate estimate of the emissions.

Australia is no stranger to bushfires, however the 2019-2020 season proved to be unprecedented. As of March 2020, the fires burned an estimated 18.6 million hectares (or 186 000 sq km) destroying over 5000 buildings and killed over 400 people. It was estimated that more than a billion animals perished from the bushfires, with several endangered species facing the risk of total extinction.

Based on a new paper, published in Nature, the extreme bushfires across southeast Australia released 715 million tonnes of carbon dioxide into the air – more than double the emissions provided by fire emission inventory datasets.

In southeast Australia, the fires were both intense and extensive. As much as 74 000 sq km of mostly eucalyptus forest, roughly 2.5 times the area of Belgium, was affected. Previous estimates from global inventory datasets of wildfire emissions based on satellite fire data and modelled quantities of standing biomass suggested that the fires released on average 275 million tonnes of carbon dioxide between November 2019 and January 2020.

However, the new analysis indicates that this figure was a gross underestimate. Using data from the Tropomi instrument on board the Copernicus Sentinel-5P satellite, the research team were able to obtain a more accurate estimate of the emissions.

Australia is no stranger to bushfires, however the 2019-2020 season proved to be unprecedented. As of March 2020, the fires burned an estimated 18.6 million hectares (or 186 000 sq km) destroying over 5000 buildings and killed over 400 people. It was estimated that more than a billion animals perished from the bushfires, with several endangered species facing the risk of total extinction.

Based on a new paper, published in Nature, the extreme bushfires across southeast Australia released 715 million tonnes of carbon dioxide into the air – more than double the emissions provided by fire emission inventory datasets.

In southeast Australia, the fires were both intense and extensive. As much as 74 000 sq km of mostly eucalyptus forest, roughly 2.5 times the area of Belgium, was affected. Previous estimates from global inventory datasets of wildfire emissions based on satellite fire data and modelled quantities of standing biomass suggested that the fires released on average 275 million tonnes of carbon dioxide between November 2019 and January 2020.

However, the new analysis indicates that this figure was a gross underestimate. Using data from the Tropomi instrument on board the Copernicus Sentinel-5P satellite, the research team were able to obtain a more accurate estimate of the emissions.

Australia is no stranger to bushfires, however the 2019-2020 season proved to be unprecedented. As of March 2020, the fires burned an estimated 18.6 million hectares (or 186 000 sq km) destroying over 5000 buildings and killed over 400 people. It was estimated that more than a billion animals perished from the bushfires, with several endangered species facing the risk of total extinction.

Based on a new paper, published in Nature, the extreme bushfires across southeast Australia released 715 million tonnes of carbon dioxide into the air – more than double the emissions provided by fire emission inventory datasets.

In southeast Australia, the fires were both intense and extensive. As much as 74 000 sq km of mostly eucalyptus forest, roughly 2.5 times the area of Belgium, was affected. Previous estimates from global inventory datasets of wildfire emissions based on satellite fire data and modelled quantities of standing biomass suggested that the fires released on average 275 million tonnes of carbon dioxide between November 2019 and January 2020.

However, the new analysis indicates that this figure was a gross underestimate. Using data from the Tropomi instrument on board the Copernicus Sentinel-5P satellite, the research team were able to obtain a more accurate estimate of the emissions.

Australia is no stranger to bushfires, however the 2019-2020 season proved to be unprecedented. As of March 2020, the fires burned an estimated 18.6 million hectares (or 186 000 sq km) destroying over 5000 buildings and killed over 400 people. It was estimated that more than a billion animals perished from the bushfires, with several endangered species facing the risk of total extinction.

Based on a new paper, published in Nature, the extreme bushfires across southeast Australia released 715 million tonnes of carbon dioxide into the air – more than double the emissions provided by fire emission inventory datasets.

In southeast Australia, the fires were both intense and extensive. As much as 74 000 sq km of mostly eucalyptus forest, roughly 2.5 times the area of Belgium, was affected. Previous estimates from global inventory datasets of wildfire emissions based on satellite fire data and modelled quantities of standing biomass suggested that the fires released on average 275 million tonnes of carbon dioxide between November 2019 and January 2020.

However, the new analysis indicates that this figure was a gross underestimate. Using data from the Tropomi instrument on board the Copernicus Sentinel-5P satellite, the research team were able to obtain a more accurate estimate of the emissions.