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"The effect of long-term warming is to make it harder to count on snowmelt runoff in wet times," said David S. Gutzler, a climate scientist at the University of New Mexico. "And it makes the dry times much harder than they used to be."

A seawater desalination plant under construction near San Diego will be the nation's largest when complete

Time Warner Cable Inc. (NYSE:TWC) has announced that its "Go Green" initiative has resulted in a 38 percent reduction in the company's carbon intensity over the past two years, far exceeding its goal of a 15 percent reduction set in 2012.

This series of visualizations shows how some of Earth's key climate indicators are changing over time.

For the first time, solar power is becoming the cheapest form of electricity production in the world, according to new statistics from Bloomberg New Energy Finance (BNEF) released Thursday. While unsubsidized solar has occasionally done better than coal and gas in individual projects, 2016 marked the first time that the renewable energy source has out-performed fossil fuels on a large scale-and new solar projects are also turning out to be cheaper than new wind power projects, BNEF reports in its new analysis, Climatescope.

The poor air quality on Dec. 6 also caused the Shanghai government to issue the highest level of public health warning as the Chinese city's pollution index ranged between 23 times and 31 times the recommended levels.

For the first time in human history and likely for the first time in at least 800,000 years, the average level of carbon dioxide (CO2) in Earth's atmosphere topped 400 parts per million for an entire month.

At a time when travel brands are finding each dollar harder to come by, cause marketing can be a cost-effective way for companies to differentiate themselves, writes Todd Wilson. "Taking the time and spending the effort to make cause marketing a cornerstone of your strategy is a good bet to drive your revenue during the holiday season and beyond," he writes.

The capacity of renewable energy has overtaken that of fossil fuels in the UK for the first time, in a milestone that experts said would have been unthinkable a few years ago.

Clean power supplied almost all of Germany's power demand for the first time on Sunday, marking a milestone for Chancellor Angela Merkel's "Energiewende" policy to boost renewables while phasing out nuclear and fossil fuels. Solar and wind power peaked at 2 p.m. local time on Sunday, allowing renewables to supply 45.5 gigawatts as demand was 45.8 gigawatts, according to provisional data by Agora Energiewende, a research institute in Berlin. Power prices turned negative during several 15-minute periods yesterday, dropping as low as minus 50 euros ($57) a megawatt-hour, according to data from Epex Spot.

Britain has gone a week without using coal to generate electricity for the first time since Queen Victoria was on the throne, in a landmark moment in the transition away from the heavily polluting fuel.

Net zero energy (NZE) buildings-responsible for the production of as much (or more) clean energy as they use annually-have been gaining global momentum. In our newly released Insight Brief, RMI presents an innovative business model for developing net zero energy or ultra-low energy districts in a way that creates significant business value. Net zero energy business models are financially attractive to investors because the large capital investments in solar PV, district heating and cooling, and energy efficiency are repaid over time on utility bills, generating a steady return that benefits from enhanced credit because of the utility-customer relationship.

Levels of CO2 in the atmosphere have surged past an important threshold and may not dip below it for "many generations." The 400 parts per million benchmark was broken globally for the first time in recorded history in 2015. But according to the World Meteorological Organisation (WMO), 2016 will likely be the first full year to exceed the mark.

Carbon dioxide, a greenhouse gas, is present at 400 parts per million for the first time ever -- a level that's 44% greater than CO2 levels prior to the Industrial Revolution, says a World Meteorological Organization report. Improvements in the near future could reduce CO2 levels by the 2060s, says WMO Secretary-General Petteri Taalas.

In 1900, an estimated 100,000 tigers roamed free on our planet. Yet within a hundred years, that number plummeted by more than 95 percent - the result of rampant poaching and widespread habitat loss. But it seems the tide may finally be turning for the majestic cat. On Sunday, the World Wildlife Fund (WWF) announced that wild tiger numbers were on the rise for the first time in over a century.

As evidence mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet

mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet.

Nike has opened its first water-free facility, which will end the use of water and process chemicals from fabric dyeing at its Taiwanese contract manufacturer Far Eastern New Century. The process, which Nike has dubbed ColorDry, reduces dyeing time by 40 percent, energy use by about 60 percent and the required factory footprint by 25 percent compared to traditional methods, the company says. ColorDry products will be introduced to the marketplace in early 2014

The process, which Nike has dubbed ColorDry, reduces dyeing time by 40 percent, energy use by about 60 percent and the required factory footprint by 25 percent compared to traditional methods, the company says.

Norpac Fisheries Export is one of several companies that has found it profitable -- as well as environmentally helpful -- to track seafood catches along their entire supply chain and make sure they were not caught using illegal, unreported and unregulated (IUU) practices. Norpac's tracking system "actually saves us time and money," Managing Director Thomas Kraft said.

Worldwide levels of carbon dioxide - the gas scientists say is most responsible for global warming - reached a significant milestone for the month of March, the National Oceanic and Atmospheric Administration said Wednesday. The global monthly average for carbon dioxide hit 400.83 parts per million in March, the first time the average surpassed 400 ppm for an entire month since such measurements began in the late 1950s, NOAA said.

Global carbon dioxide levels averaged 400.83 parts per million in March, marking the first time that atmospheric carbon has remained above the 400 ppm threshold for an entire month, according to the National Oceanic and Atmospheric Administration. "It's both disturbing and daunting," said NOAA chief greenhouse gas scientist Pieter Tans. 

Mondelez International exceeded its goal to reduce manufacturing waste by 15 percent per metric ton of production by 2015, according to the company's most recent sustainability report. Through 2014, the snacking company achieved a 57 percent reduction - four times the original goal.

Today Sprint [NYSE: S] announced it will be one of the first companies to use AirCarbon™, a new carbon-negative material made from greenhouse gas, instead of petroleum, to create plastic products.