Category: extreme weather

Global warming will devastate marginal farming areas

Southwest will be hit especially hard

Climate scientists have a pretty good understanding of how global warming will affect agriculture in different parts of the world. Is anybody listening? @bberwyn photo.

Staff Report

Most agriculture in the southwestern U.S. is already marginal, possible only because U.S. taxpayers support cheap water for questionable crops. And because of global warming, the outlook is grim as the region continues to warm and dry.

By 2050, Arizona cotton production will drop to less than 10 percent of the crop yield under optimal irrigation conditions, a new MIT study projects. Similarly, maize grown in Utah, now only yielding 40 percent of the optimal expected yield, will decrease to 10 percent with further climate-driven water deficits. Continue reading “Global warming will devastate marginal farming areas”

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Climate extremes have big effect on wheat yields

New index helps project changes

Grain crops are very vulnerable to climate change impacts. @bberwyn photo.

Staff Report

Farmers have known it for generations that heatwaves, drought and extreme rain are a bad recipe for growing wheat, and now scientists have quantified those impacts. Heat stress, combined with drought or excessive rain is responsible for about 40 percent of the changes in wheat yields from one year to another.

That’s bad news in a world that’s expecting extreme weather to intensify in the coming decades, but at least the stress index developed scientists with the European Joint Research Centre will help communities plan ahead and ameliorate at least some climate change impacts. Continue reading “Climate extremes have big effect on wheat yields”

Southern Colorado Plateau has dried 17 percent since 1985

New study projects impacts for world’s drylands

Hikers enjoying the view at Colorado National Monument, near Grand Junction. Researchers say recreation economies in the world’s drier zones are likely to take a big hit from global warming in the next few decades. @bberwyn photo.

Staff Report

Global warming is bad enough on its own for the world’s drylands, but when you add in the impacts of population growth, development and the increasing demand for water, the future looks downright grim.

The end result will be conditions that are detrimental to the recreation economy, wildlife habitat, water availability and other resources in hyper-arid landscapes, according to a recent paper published in Ecosphere. Drylands are of concern because broad-scale changes in these systems have the potential to affect 36 percent of the world’s human population. Continue reading “Southern Colorado Plateau has dried 17 percent since 1985”

Global warming drives more extreme rainfall

Summer rainstorm in the Rocky Mountains. @bberwyn photo.

New study pinpoints regional patterns in changes

Staff Report

Basic physics tells us a warmer atmosphere can hold more moisture, and that, at some point, that moisture will condense and fall as rain. That’s why climate scientists are certain that global warming will lead to more extreme rainfall, as has already been documented in various parts of the world the past few decades.

A new study now helps quantify the impact of warming and also reveals regional patterns that will help people prepare. According to the researchers with MIT and the Swiss Federal Institute of Technology, the most extreme rain events in most regions of the world will increase in intensity by 3 to 15 percent, depending on region, for every degree Celsius that the planet warms. Continue reading “Global warming drives more extreme rainfall”

Major U.S. companies urge Trump to stay in Paris climate deal

The Paris agreement is the world’s best chance of limiting global warming and avoiding major climate disruptions. @bberwyn photo.

Global agreement helps manage climate risks, generates jobs

Staff Report

Major companies, including across the U.S. economy are urging President Trump to keep the United States in the Paris climate change agreement. The U.S. must stay at the table to help steer efforts to manage rising climate risks and compete in expanding global clean energy markets, according to a letter to the president Trump organized by the Center for Climate and Energy Solutions.

“By committing all countries to action, the agreement expands markets for innovative clean technologies, generating jobs and economic growth,” the letter says. “U.S. companies are well positioned to lead, and lack of U.S. participation could put their access to these growing markets at risk.’’ Continue reading “Major U.S. companies urge Trump to stay in Paris climate deal”

Survey shows very little climate skepticism in Europe

Widespread support for climate action in 4 major European countries

The average global temperature spiked to yet another record in March 2016.

Planet Earth experienced its second-warmest March on record. Map via NASA.

Staff Report

More than eight out of 10 people in the UK, France, Germany and Norway believe that the world’s climate is changing, and a similar proportion think that it is at least partly caused by human activity, according to a recent scientific survey conducted by European researchers.

The survey of more than 4,000 members of the public explored opinions on climate change, climate policy and future energy options. It showed that a wide majority also  support a range of different measures to combat climate change. Continue reading “Survey shows very little climate skepticism in Europe”

EPA chief sued for ‘spouting deceptive climate pseudo-science’

EPA staff concerned about possible data purge

The EPA website clearly discloses how greenhouse gases affect the climate.

Staff Report

EPA administrator Scott Pruitt may have to back up his false claims on greenhouse gases and climate change in court. A lawsuit filed April 13 by the watchdog group Public Employees for Environmental Responsibility wants the agency head to show studies backing up his statements that call into question the role of CO2 emissions in global warming. The lawsuit also seeks to determine whether EPA possesses a single study that supports Mr. Pruitt’s stance.  Continue reading “EPA chief sued for ‘spouting deceptive climate pseudo-science’”