The economic impacts of climate change are the part of the economics of climate change related to the effects of climate change. In 2019, climate change contributed to extreme weather events causing at least $100 billion in damages.  By 2050, cumulative damages from climate change may reach $8 trillion, impoverishing by 3% of gross world product and the poorest regions by more of their gross domestic product (GDP).  A 2017 survey of independent economists looking at the effects of climate change found that "estimates for future damages .ranges from 2% to 10% or more of global GDP per year. The Stern Review for the British Government also predicted that world GDP would be reduced by several percent due to climate related costs; among the factors they considered were increased extreme weather events and stresses to low-lying areas due to sea level rise.  Insofar as their calculations may omit ecological effects that are difficult to quantify economically (such as human deat...

A record amount of California is burning, spurred by a nearly 20-year mega-drought. To the north, parts of Oregon that don’t usually catch fire are in flames. Meanwhile, the Atlantic’s 16th and 17th named tropical storms are swirling, a record number for this time of year. Powerful Typhoon Haishen lashed Japan and the Korean Peninsula this week. Last month it hit 130 degrees in Death Valley, the hottest Earth has been in nearly a century. Phoenix keeps setting triple-digit heat records, while Colorado went through a weather whiplash of 90-degree heat to snow this week. Siberia, famous for its icy climate, hit 100 degrees earlier this year, accompanied by wildfires. Before that Australia and the Amazon were in flames. A record amount of California is burning, spurred by a nearly 20-year mega-drought. To the north, parts of Oregon that don’t usually catch fire are in flames. Meanwhile, the Atlantic’s 16th and 17th named tropical storms are swirling, a record number for this time of year....

  It should be troubling enough that temperatures are rising, glaciers are melting, and Arctic sea ice is disappearing so fast that walruses often lounge about on land. But scientists pushing world leaders to forge a global climate-change agreement in Paris increasingly are uncovering more urgent warning signs. We asked scientists to identify what worries them the most. The West Antarctic Ice Sheet Since the 1970s warming ocean waters have melted a significant section of ice in the Amundsen Sea in the Southern Ocean – so much that collapse of a far greater mass of ice may be inevitable. Scientists from NASA and elsewhere, based on a half-dozen studies in the past two years, now believe it may be too late to stop  so much Antarctic ice from melting that it would send sea levels rising 16 feet more, inundating regions home to hundreds of millions of people. What may still be possible, however, is for humans to control just when that might happen. Antarctica's South Dakota-sized ...

The global warming that’s changing our climate is already having dire consequences. In just the past few decades: Rising temperatures have worsened extreme weather events. Chunks of ice in the Antarctic have broken apart. Wildfire seasons are months longer. Coral reefs have been bleached of their colors. Mosquitoes are expanding their territory, able to spread disease. What’s causing these harmful changes? It’s mainly us. We humans are the ones who burn fossil fuels and chop down forests, causing average temperatures to rise worldwide. That global warming trend is increasingly disrupting our climate — the average weather over many years. Earth has already warmed by about 1 degree Celsius, or 1.8 degrees Fahrenheit, since the 19th century, before industry started to boom. While we experience the effects, we’re on our way toward 1.5 degrees C (2.7 F) by as early as 2030. Why a half-degree more is such a big deal A warmer world — even by a half-degree Celsius — has more evaporation, leadi...

Global warming is expected to have far-reaching, long-lasting and, in many cases, devastating consequences for planet Earth. Global warming, the gradual heating of Earth's surface, oceans and atmosphere, is caused by human activity, primarily the burning of fossil fuels that pump carbon dioxide (CO2), methane and other greenhouse gases into the atmosphere. Already, global warming is having a measurable effect on the planet. "We can observe this happening in real time in many places. Ice is melting in both polar ice caps and mountain glaciers. Lakes around the world, including Lake Superior, are warming rapidly — in some cases faster than the surrounding environment. Animals are changing migration patterns and plants are changing the dates of activity," such as trees budding their leaves earlier in the spring and dropping them later in the fall, Josef Werne, a professor of geology and environmental science at the University of Pittsburgh, told Live Science. Here is an in-d...