Temperatures in central China are 10 to 14 degrees Fahrenheit hotter today than they were 20,000 years ago - an increase two to four times greater than many scientists previously thought.  

Cirrus clouds, the thin wisps of vapor that coalesce in the upper layers of the troposphere and trail across the sky, often more than 10 miles above the Earth's surface, influence our global climate, cooling the planet by reflecting incoming solar radiation and warming it by trapping outgoing heat.

Understanding the mechanisms by which these clouds form would help scientists make accurate predictions about future climate patterns.

Hawaii does not get a lot of hurricanes, only two have made landfall in the last 30 years.

But scientists at the International Pacific Research Center, University of Hawaii at Manoa predict that Hawaii could see a two-to-three-fold increase in tropical cyclones by 2075.

How worried should Hawaii residents get?

The World Is Getting Cooler*

*  Not!

This is something of a pre-emptive strike against the quote miners of this world.  I predict that they will use a new study of cloud seeding to sell ice damage insurance or something.

If you sprinkle a cup of water on a bonfire it will have a tiny cooling effect.  It will not put out the fire or wishomagically reverse the heating effect.  Scientists know exactly what they mean by a cooling effect, and so does everyone who ever used a cooling fan in summer.  But there are some snake oil salesmen who want to convince you that a simple cooling fan can lower the air temperature.

Natural emissions and man-made pollutants have an unexpected effect; they make clouds brighter and have a cooling effect on the world's climate.

A quick primer: Clouds are made of water droplets, condensed on to tiny particles suspended in the air. When the air is humid enough, the particles swell into cloud droplets. It has been known for some decades that the number of these particles and their size control how bright the clouds appear from the top, controlling the efficiency with which clouds scatter sunlight back into space. A major challenge for climate science has been trying to understand and quantify these effects, which have a major impact in polluted regions.

Rainfall over the Hawaiian Islands has been declining since 1978.

Is the drying trend due to global warming? Yes, says a team of researchers who found that climate models don't have enough resolution to capture the diverse rainfall pattern over Hawaii, where dry and wet areas often lie only a mile or even less apart, and so devised a method called 'statistical downscaling.'

 They first got a take on the effects of the general drying trend on local heavy-rain days by reanalyzing observations from 1978 to 2010 at 12 rain-gauge stations spread throughout the islands. Studying hundreds of weather patterns during such days, they identified the typical atmospheric circulation patterns in the North Pacific that favor heavy rains over Hawaii. 

Thermoelectric power plants interact with climate, hydrology, and aquatic ecosystems while rivers serve as "horizontal cooling towers"  — but at a cost to the environment, says a new analysis.  

While the United States is now back at early 1990s levels of CO2 emissions, thanks to a switch to natural gas in the energy sector and a moribund economy, that doesn't apply to Asia. The middle class in China alone has a population that exceeds the entire USA and they all want, and are getting, cars and air conditioners and a better life and the emissions to go along with it. Globally, greenhouse gas emissions have continued to rise but warming, the telltale sign of climate change, has not.

Since 2000, global warming has tapered off and virtually no one in the climate science community predicted that could happen.

An analysis of how carbon is trapped and released by iron-rich volcanic magma offers clues about our early atmospheric evolution and also that of other terrestrial bodies.

The composition of a planet's atmosphere starts far beneath the surface. When mantle material melts to form magma, it traps subsurface carbon. As magma moves upward toward the surface and pressure decreases, that carbon is released as a gas. On Earth, carbon is trapped in magma as carbonate and degassed as carbon dioxide, a greenhouse gas that helps Earth's atmosphere trap heat from the sun. But how carbon is transferred from underground to the atmosphere in other planets — and how that might influence greenhouse conditions — wasn't well understood.