1.5℃ Warming Threshold Exceeded. The United Nations climate change conference held last year in Paris had the aim of tackling future climate change.
After the deadlocks and weak measures that arose at previous meetings, such as Copenhagen in 2009, the Paris summit was different. The resulting Paris Agreement committed to: Holding the increase in the global average temperature to well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5°C above pre-industrial levels, recognising that this would significantly reduce the risks and impacts of climate change. The agreement was widely met with cautious optimism. Certainly, some of the media were pleased with the outcome while acknowledging the deal’s limitations. 'Record' Hot Year of 2015 Now the Average.
The hottest year on record globally in 2015 could be an average year by 2025 and beyond if carbon emissions continue to rise at the same rate, new research has found.
Lead author Dr Sophie Lewis from the ANU Fenner School of Environment and Society said human activities had already locked in this new normal for future temperatures, but immediate climate action could prevent record extreme seasons year after year. "If we continue with business-as-usual emissions, extreme seasons will inevitably be the norm within decades and Australia is the canary in the coal mine that will experience this change first," said Dr Lewis, who is also from the ARC Centre of Excellence for Climate System Science. "If we don't reduce our rate of emissions the record hot summer of 2013 in Australia - when we saw temperatures approaching 50 degrees Celsius in some areas - could be just another average summer season by 2035.
Global Warming Exceeds 1.5°C Limit. The planet is on course to breach the internationally agreed warming limit of 1.5°C within 10 years, according to new research from Australia.
LONDON, 18 May, 2017 – Australian scientists have warned that planetary average temperatures could breach the internationally agreed target barrier of a 1.5°C rise as early as 2026. Although global warming is driven by human behaviour – and in particular the prodigal burning of fossil fuels at an ever-accelerating rate to dump ever-greater quantities of carbon dioxide in the atmosphere – it is also influenced by natural climate rhythms. And, say scientists from Australia’s Centre of Excellence for Climate System Science, one of these is a slow-moving oceanic and atmospheric cycle called the Interdecadal Pacific Oscillation (IPO), which blows hot and cold and then hot again, every decade or so.
The latest hot phase could be about to push the global thermometer beyond the ideal limit set by the UN climate conference in Paris in 2015. Global records. AGW Outstrips New Crop Varieties' Ability to Cope. Image copyright Getty Images Crops yields around the world could fall within a decade unless action is taken to speed up the introduction of new varieties.
A study says temperatures are rising faster than the development of crop varieties that can cope with a warmer world. In Africa, researchers found that it can take 10-30 years before farmers can grow a new breed of maize. By the time these new crops are planted, they face a warmer environment than they were developed in. 2℃ Warming Threshold Exceeded. Average Temperature Rises 2℃ Above Normal. Fisheries Harvests Drop 30% Due To Soaring Ocean Temperatures. The soaring temperature of the oceans is the “greatest hidden challenge of our generation” that is altering the make-up of marine species, shrinking fishing areas and starting to spread disease to humans, according to the most comprehensive analysis yet of ocean warming.
The oceans have already sucked up an enormous amount of heat due to escalating greenhouse gas emissions, affecting marine species from microbes to whales, according to an International Union for Conservation of Nature (IUCN) report involving the work of 80 scientists from a dozen countries. The profound changes underway in the oceans are starting to impact people, the report states. “Due to a domino effect, key human sectors are at threat, especially fisheries, aquaculture, coastal risk management, health and coastal tourism.” Dan Laffoley, IUCN marine adviser and one of the report’s lead authors, said: “What we are seeing now is running well ahead of what we can cope with.
The overall outlook is pretty gloomy. US Southwest Experiences 'Generation-Long' Mega-Drought. Southern California was ready to burn.
El Niño rains that topped off reservoirs in the north of the state barely drizzled down south, leaving the region in a worst-in-centuries drought. By June, tree die-off in state forests, accelerated by bark beetles feasting on dry pines, had more than doubled from 2015, topping 66 million. Nicaragua Loses Majority of Coffee Growing Capacity. Climate change is going to halve the area suitable for coffee production and impact the livelihoods of more than 120 million of the world’s poorest people who rely on the coffee economy, according to a new report by the Climate Institute, commissioned by Fairtrade Australia & New Zealand.
The report findings follow stark warnings by some of the world’s biggest coffee producers, including Starbucks and Lavazza, who have said climate change is posing a severe risk to the industry. Climate change is already impacting coffee crops around the world, according to the report. Summer Temperatures Hit 5°C Above Average. Surface Temperature Average 2º Above Pre-Industrial Levels. New York City Experiences Thousands of Heat Deaths. As many as 3,331 people annually could die from heat waves by 2080 in New York City alone if no steps are taken to adapt to warming temperatures and reduce emissions, a new study warns.
The report comes at the same time as a separate analysis tracing climate change and air pollution’s effects on children. Together the studies, both out of Columbia University, lay out the case for cutting carbon now. Spring Comes A Month Early to the Great Lakes. Warm springs in the Great Lakes and Northeast regions – which create havoc for agriculture – may start earlier by mid-century if greenhouse gas emissions are not reduced, according to a new Cornell study published in Climate Dynamics.
Very warm springs have been anomalies, but this new analysis of climate model data shows an increased frequency to nearly one in every three years by the end of this century. “The spring of 2012, with its summerlike warmth, brought plants out of dormancy and then had a lengthy freeze. This was a nightmare scenario for many growers, and it showed us a snapshot of what global warming might look like in this region,” said Toby Ault, assistant professor in earth and atmospheric sciences, an author on the study. Unusually warm temperatures early in spring 2012 led to the warmest March, breaking records in more than 15,000 U.S. sites. Few Cities Cool Enough for Summer Olympics. By 2085, only eight Northern Hemisphere cities outside of western Europe are likely to be cool enough to host the summer Olympic games, predict researchers.
San Francisco would be one of just three North American cities that could serve as hosts, they say. Its authors explain how their findings can be used to examine the viability of future Olympics sites based on a measurement that combines temperature, humidity, heat radiation, and wind—their wetbulb globe temperature (WBGT). Researchers used two climate models to project rising temperatures over the next century and applied those results to current safety procedures used in determining the viability of a host city. Average Global Temperature 3ºF Above Pre-Industrial. AP Photo/Matt York At this point, you're probably fully aware of how hot it is.
But in case you're unaware: It's really, really hot. Dangerous Climate Thresholds May Be Closer Than Anticipated. We don’t want the Earth to warm more than 1.5–2°C (2.7-3.6°F) compared to the pre-industrial climate. These targets are not magical; they are expert judgements about what it takes to avoid some of the more serious effects of climate change.
We know that the seas will rise (they already are). We know that droughts and flooding will get more severe (they already are).