21 March 2017, The Guardian, Record-breaking climate change pushes world into ‘uncharted territory’ Earth is a planet in upheaval, say scientists, as the World Meteorological Organisation publishes analysis of recent heat highs and ice lows. The record-breaking heat that made 2016 the hottest year ever recorded has continued into 2017, pushing the world into “truly uncharted territory”, according to the World Meteorological Organisation. The WMO’s assessment of the climate in 2016, published on Tuesday, reports unprecedented heat across the globe, exceptionally low ice at both poles and surging sea-level rise. Global warming is largely being driven by emissions from human activities, but a strong El Niño – a natural climate cycle – added to the heat in 2016. The El Niño is now waning, but the extremes continue to be seen, with temperature records tumbling in the US in February and polar heatwaves pushing ice cover to new lows. “Even without a strong El Niño in 2017, we are seeing other remarkable changes across the planet that are challenging the limits of our understanding of the climate system. We are now in truly uncharted territory,” said David Carlson, director of the WMO’s world climate research programme. “Earth is a planet in upheaval due to human-caused changes in the atmosphere,” said Jeffrey Kargel, a glaciologist at the University of Arizona in the US. “In general, drastically changing conditions do not help civilisation, which thrives on stability.” The WMO report was “startling”, said Prof David Reay, an emissions expert at the University of Edinburgh: “The need for concerted action on climate change has never been so stark nor the stakes so high.” The new WMO assessment also prompted some scientists to criticise Donald Trump. “While the data show an ever increasing impact of human activities on the climate system, the Trump administration and senior Republicans in Congress continue to bury their heads in the sand,” said Prof Sir Robert Watson, a distinguished climate scientist at the UK’s University of East Anglia and a former head of the UN’s climate science panel. Read More here
Tag Archives: Emissions
18 March 2017, The Guardian, CO2 emissions stay same for third year in row – despite global economy growing. International Energy Agency report puts halt in emissions from energy down to growth in renewable power. Carbon dioxide emissions from energy have not increased for three years in a row even as the global economy grew, the International Energy Agency (IEA) said. Global emissions from the energy sector were 32.1bn tonnes in 2016, the same as the previous two years, while the economy grew 3.1%, the organisation said. The IEA put the halt in growth down to growing renewable power generation, switches from coal to natural gas and improvements in energy efficiency but said it is too soon to say that global emissions have peaked. The biggest drop was seen in the US, where carbon dioxide emissions fell 3%, while the economy grew 1.6%, following a surge in shale gas supplies and more renewable power that displaced coal. US emissions are at their lowest level since 1992, while the economy has grown 80% since that time….. The pause in emissions growth was welcomed by the IEA, but it warned it was not enough to meet globally-agreed targets to limit temperature rises to below 2C above pre-industrial levels – considered to be the threshold for dangerous climate change. Read More here
9 March 2017, The Guardian, Renewable energy spike led to sharp drop in emissions in Australia, study shows. A sharp drop in Australia’s greenhouse gas emissions at the end of last year came courtesy of a spike in renewable energy generation in a single month, according to a new study. Australia’s emissions fell by 3.57m tonnes in the three months to December, putting them back on track to meet quarterly commitments made in Paris after a blowout the previous quarter. The fall is the largest for the quarter since the government began recording emissions in 2001. The report’s authors said this was entirely due to record levels of hydro and wind generation in October. This brought emissions for the year to December to below the year to December 2015. But projected emissions for the December quarter were still 6.89m tonnes over levels demanded by scientifically based targets set by the government’s Climate Change Authority. And, long term, the results show Australia is set to run more than 300m tonnes over what is required to meet its Paris targets in 2030. Read More here
31 January 2017, Climate News Network, Video demand drives up global CO2 emissions. Sitting back and watching your favourite streamed TV series may seem harmless enough – but video demand is leaving a hefty carbon footprint. LONDON, 31 January, 2017 – The internet is fast becoming a major source of global carbon emissions – and the main cause is video demand, the increasing popularity of “real time” streamed video content. Video streaming to internet-enabled TVs, game consoles and mobile devices already accounts for more than 60% of all data traffic – and the latest forecasts suggest this will rise to more than 80% by 2020. Increasingly, viewers across the world are watching films and TV series in real time through subscriptions to Netflix or Amazon, while social media platforms such as Facebook and Twitter are offering more and more streamed video content for free. This is driving a dizzying increase in the amount of information that needs to be stored and transmitted by power-hungry data centres. Up until 2003 the world had accumulated a total of five exabytes – five billion gigabytes – of stored digital content. By 2015 that amount was being consumed every two days, as annual consumption reached 870 exabytes. As more video is streamed and more of the world’s population goes online, annual data traffic is forecast to reach 2,300 exabytes by 2019. Read More here