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MIT report finds China’s actions on climate change crucial; argues for global economy-wide greenhouse gas tax

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A new report from the MIT Joint Program on the Science and Policy of Global Change shows the importance of all major nations taking part in global efforts to reduce emissions—and in particular, finds China’s role to be crucial. Without China, we miss that mark by about 1 °C.

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Study finds global carbon emissions reached 10 billion tonnes in 2010

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Global carbon dioxide emissions from burning fossil fuels have increased by 49% in the last two decades, according to the latest figures from the Global Carbon Project. billion tonnes of CO 2 ) in 2010 for the first time. billion tonnes of CO 2 ) in 2010 for the first time. parts per million.

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PCAST suggests 6 key components for climate change strategy to President Obama; adaptation and mitigation

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The President’s Council of Advisors on Science and Technology (PCAST) released a letter to President Obama describing six key components the advisory group believes should be central to the Administration’s strategy for addressing climate change. Improving coordination and support for research efforts on climate change preparedness.

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Final report of Garnaut Review Update recommends carbon pricing scheme for Australia to do its fair share on climate change

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It will be much harder and more expensive for Australia to do its fair share on climate change without a carbon pricing scheme, according to the final report of the Garnaut Climate Change Review – Update 2011, Australia in the Global Response to Climate Change. Earlier post.) Earlier post.)

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Studies find global COVID-19 lockdowns have significantly reduced PM2.5 and NO2 pollution, but ozone up

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Levels of two major air pollutants have been reduced significantly since lockdowns began in response to the COVID-19 pandemic, but a secondary pollutant—ground-level ozone—has increased in China, according to new research. TROPOMI NO 2 columns over China (a) before and (b-e) after the lockdowns (shown by padlocks) due to COVID-19.

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Study estimates global black carbon emissions up 72% from 1960-2007; BC emissions intensity down 52%

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A study led by a team from Peking University has estimated that global black carbon (BC) emissions increased from 5.3 Over the same period, BC emission intensity—the amount of BC emitted per unit of energy production—decreased by 52% for all the regions under assessment, especially China and India. Credit: ACS, Wang et al.

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Study: Population Change Could Significantly Affect Climate Change

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By mid-century it is estimated that global population could rise by more than three billion people, with most of that increase occurring in urban areas. If global population growth slows down, it is not going to solve the climate problem, but it can make a contribution, especially in the long term. —Shonali Pachauri.