On January 24, 2020, Mike Catton and Julian Druce, of the Victorian Infectious Disease Reference Laboratory вЂ“ which is part of the Doherty Institute вЂ“ used the SARS-CoV-В 2-specific PCR test theyвЂ™d developed from the sequence data to diagnose AustraliaвЂ™s first case in a self-aware traveller. Our instituteвЂ™s epidemiologists and medical doctors have been active on various key committees, helping the chief health officers and providing analysis that informs politicians, so IвЂ™ve stayed away from commenting on public health directives, lockdowns and so forth.ДЇocusing on the disease, what has been the nature of the journey so far? Once the SARS-CoV-2 gene sequence was released on January 15, 2020, innovators in Britain, Europe and the United States started immediately to make the vaccines that, within months, were in clinical trials and, at least in the northern hemisphere, going into the arms of large numbers of people by the beginning of 2021.

For the 18 months since, IвЂ™ve been very active as a Covid-19 communicator on traditional broadcast and social media, while also giving lectures, recording podcasts and taking part in panel discussions and Q&A formats, both locally and across the planet.Д®arly on, I decided to stick to what I know, so my focus has largely been on the nature of the disease we call Covid-19 and our virus specific вЂњadaptiveвЂќ immune response to the causative SARS-CoV-2 virus. That was from a combination of logging and wood harvesting, as well as the impact of agriculture, the study found.Way back in March last year, I wrote a column for this newspaper called вЂњThe pandemic we had to haveвЂќ. The most impactful was the Tropical Rainforest in Sumatra, which removed about 1.2 million tons from the atmosphere, but released another 4.2 million - making for net emissions of about 3 million tons.

The 10 sites accounted for nearly 5.5 million tons of net carbon emissions. Of those, about 80 sites were net neutral, while the rest were net absorbers of carbon. the Barberton Makhonjwa Mountains in South Africa Kinabalu Park in Malaysia the Uvs Nuur Basin in Russia and Mongolia the Greater Blue Mountains area of Australia and Morne Trois Pitons National Park in Dominica.ДЄll told, however, the net carbon emissions from the 10 sites together amount to little compared to the total of roughly 190 million tons of carbon dioxide that are absorbed each year by all 257 UNESCO-listed forests. The 10 sites that were net sources of carbon from 2001 to 2020 were the Tropical Rainforest in Sumatra the RГo Platano Biosphere Reserve in Honduras Grand Canyon National Park and Yosemite National Park in the United States: Waterton Glacier International Peace Park in Canada and the U.S. The consequences of climate change will be on many minds as world leaders gather in Glasgow starting this weekend for a key United Nations climate conference known as COP26.

вЂњOur reportвЂ™s finding that even some of the most iconic and best protected forests, such as those found in World Heritage sites, can actually contribute to climate change is alarming.вЂќ

вЂњAll forests should be assets in the fight against climate change,вЂќ said Tales Carvalho Resende, a co-author of the report who works at Paris-based UNESCO. The study adds to growing signs that human activities and the fallout from climate change - which scientists say has made weather extremes like drought and wildfires more likely - have transformed some natural carbon sinks that suck up CO2 from the air into net sources of it over the last two decades. The study was based on information collected through on-site monitoring and from satellites. The Switzerland-based International Union for Conservation of Nature and UNESCO, the U.N.вЂ™s cultural and educational agency, said their report provides the first-ever assessment of greenhouse gases produced and absorbed in UNESCO-listed forests. The excess carbon turns up from just 10 of 257 forests classified among UNESCO World Heritage sites. GENEVA (AP) - Sites containing some of the worldвЂ™s most treasured forests, including the Yosemite National Park and IndonesiaвЂ™s Sumatra rainforest, have been emitting more heat-trapping carbon dioxide than they have absorbed in recent years, a U.N.-backed report said.ДЄccording to the report released Thursday, factors like logging, wildfires and clearance of land for agriculture are to blame.

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