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More extreme weathers in the US

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Why are extreme weather conditions becoming more common in the US in this decade compared with all previous decades?

Extreme Environments
Weather
decade
unites states
Hassan Qudrat-Ullah
3 months ago

6 answers

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I belive it si a gobal phenominon due to global worming and climate chnage.

Bo Chen
3 months ago
BUt there are many people who deny climate change the what would you say to them? - Imane 3 months ago
Well, I will ask them to visit Shanghai, China, and see why their monring does not begin after a10 or 11 am in most of the month of the year. Ecen Chinese giverment has made the decsion to have hybrid taxies in the cirt in the nuear future. - Imane 3 months ago
Whether we believe or not in climate change, the detrimental effects of emissions are widespread, so we can't ignore this issue. - Ali 3 months ago
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If it is not a global warning behind these extreme weathers them who is the culprit?

Imane B
3 months ago
Man-made activities are the big culprit in having the increased emissions and health damaging effects of us. - Ali 3 months ago
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I think it is a natural cycle of weather changes.

Wasim Safdar
3 months ago
Then what was the start of this cycle? - Ali 3 months ago
No, it is not a cyclic event at all/ We can its impacts on crops, widelike, seas level rise etc. - Imane 3 months ago
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It is not a cycle but huge man-made activities, industrialization of 1000fold over the last five decades, and burning of fossils at the speed of light are the culprits. 

Ali Qudrat
3 months ago
I don't think it is ciclic thing. When was the last cycle? How do we know it is a cylce? - Imane 3 months ago
Imane BOUKHATEM. no, I did not say it a cyclic thing. Instead, I agree with David Whiting and Hassan Qudrat-Ullah that it is man-made phenomenon or at least our activities are part of it. Emissions can hardly go unabated. - Ali 1 month ago
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“Climate change” and “global warming” are often used interchangeably but have distinct meanings. Similarly, the terms "weather" and "climate" are sometimes confused, though they refer to events with broadly different spatial- and timescales.

Weather vs. climate: Weather refers to atmospheric conditions that occur locally over short periods of time—from minutes to hours or days. Familiar examples include rain, snow, clouds, winds, floods or thunderstorms. Climate, on the other hand, refers to the long-term regional or even global average of temperature, humidity and rainfall patterns over seasons, years or decades.

What is global warming: refers to the long-term warming of the planet since the early 20th century, and most notably since the late 1970s, due to the increase in fossil fuel emissions since the Industrial Revolution. Worldwide since 1880, the average surface temperature has gone up by about 1 °C (about 2 °F), relative to the mid-20th-century baseline (of 1951-1980). This is on top of about an additional 0.15 °C of warming from between 1750 and 1880.

What is climate change: Climate change refers to a broad range of global phenomena created predominantly by burning fossil fuels, which add heat-trapping gases to Earth’s atmosphere. These phenomena include the increased temperature trends described by global warming, but also encompass changes such as sea level rise; ice mass loss in Greenland, Antarctica, the Arctic and mountain glaciers worldwide; shifts in flower/plant blooming; and extreme weather events.

Is it climate change: The emerging field of “event attribution” is enabling scientists to better understand the drivers of extreme weather. New and stronger evidenceconfirms that abnormally high temperatures and associated extreme weather are indeed related to human activities. For example, the very latest attribution study found that human-caused climate change had at least doubled the likelihood of the remarkable northern Europe heatwave in 2018.

  • Rainfall is harder to predict, as it depends more on relatively local factors such as atmospheric circulation and the availability of moisture. Many of these processes are not adequately represented in observational data or climate models. So, while a warmer world is associated with an increase in atmospheric moisture, what that means for extreme rainfall events in the UK will vary substantially from region to region.

  • Having said that, we can use past observations and future climate model experiments to infer whether the intensity and likelihood of such events are a result of climate change.

  • In December 2015 Storm Desmond travelled across the North Atlantic, leaving in its wave an “atmospheric river” of super-moist air. Record-breaking rainfall caused major flooding across Ireland and northern England. Researchers at Oxford University and the Royal Netherlands Meteorological Institute have shown climate change increased the frequency of a rainfall event like Storm Desmond by 59%.

  • This isn’t the first time that extreme UK rainfall has been linked to a changing climate. By analysing the extremely wet winter in 2013/14, scientists found that climate change had made such a season 25% more likely.

  • While there are many uncertainties in attribution studies, researchers have shown that human-caused climate change is nudging the temperatures up and increasing the odds of new extremes in heat and rainfall.


David Whiting
Climate Reality Leader

David Whiting
3 months ago
Dear David Whiting, I really appreciate your informative response. Stiill, I am note sure if this can convince the climate change deniers, especially our leaders. - Hassan 3 months ago
Who can convice anyone who does not belive in sceince at the first place? - Ali 3 months ago
Most people who reject the science of climate change do so not because they have a problem with basic physics. It's because the impacts — how climate change is going to affect us — seem far off, as if they'll affect future generations but not us. But the solutions do seem to pose an imminent risk to us, because we are being told that the solutions involve destroying the economy,. - David 3 months ago
Perhapes we can agree on the damaging effects of emissions. The rising heathcare costs owe substantially to these unabated emissions we face. See the case of Shanghai, Cina, where, in most of the months, morning does not beging before 10 or 11 am due to thick cloud over its horizon. Pretty soon, this city will have all taxies hybrid, a little solution, but will help the economy too. - Hassan 3 months ago
I agrre with you Hassan: Given these complexities, estimating the costs of managing the health risks of climate variability and change is not straightforward. - David 3 months ago
(1) costs associated with increased health care and public health interventions for morbidity and mortality from a long list of climate-sensitive health outcomes; (2) costs associated with lost work days and lower productivity; and (3) costs associated with well-being. - David 3 months ago
Costs could also accrue from repeated episodes of malaria, diarrhea, or other infectious diseases that affect childhood development and health in later life. Costs associated with actions taken in other sectors are also important for health, such as access to safe water and improved sanitation. A portion of the costs of managing the health risks associated with migrants and environmental refug - David 3 months ago
environmental refugees could be, but has not been, counted. - David 3 months ago
David Whiting and Hassan Qudrat-Ullah, thanks for the insightful dialogue. We may not be able to truly estimate the health damage effects of global warming, droughts and extreme rains and floods are very visible in their destruction and havoc they bring on affected communities. We have to find some better ways to manage these extreme weather’ vulnerabilities. - Tahir 2 months ago
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Not just in the US. Climate change phenomena causing devastating damage are increasingly more frequent and intense on a continuous basis.. In the last 50 years, atmospheric CO2 and other GHG level have grown exponentially, not cyclically, That impact is anthropogenic, meaning that it's related to human activity. Unfortunately, we might be near a thresold or point of no return where mitigation efforts might not be enough to avoid massive floods, extreme weather, etc. Global meetings (COP) haven't been successful in the last 20 years in agreeing caring policies and divesting from fuel and carbon energy. Sad reality.

Fabian Szulanski
3 months ago
Because exponential growth of CO2 concentration causes only linear raise in temperature, people sometimes think that subsequent emissions will result in ever slower temperature increases. Well, the most persistent myths are based on technically true statements - that’s true also in this case. It is true, that for each doubling of CO2 concentration, temperature increases by a constant value. - David 3 months ago
Hi Fabian: Having been directly involved with Cop 21 and the 50th Session of the IPCC The 50th session of the Intergovernmental Panel on Climate Change (IPCC 50) will convene in August 2019. More info here >> https://enb.iisd.org/upcoming/?proc=5 - David 3 months ago
Hi David. and this year's COP will be in Santiago, Chile. BTW, I've been facilitating workshops with Climate Interactive simulations for more than 5 years. They are great for raising awareness at all ages. - Fabian 3 months ago
Hi Fabian, i am sure I have come across your work whilst working with Al Gore as a Climate Reality Leader - it is a uphill struggle to turn arm chair critics into activits - i think the world is starting to wake up - the big issue is how we progress that into real action and meaningfull end results - David 3 months ago
Any effort, little or big, should be appreciated and supported, regardless, I agree Fabian Szulanski, David Whiting, for yoru responses, and Hassan Qudrat-Ullah, who iniated this question. - Ali 2 months ago

Have some input?