"Oil prices sank again on Monday, giving consumers more of a break and causing a split among OPEC leaders about what action should be taken, if any, to halt the slide."

"Like August before it, September 2014 was the warmest September on record, according to newly updated NASA data. The warm month makes it even more likely that 2014 will become the warmest year on record."

"Forget Nessie: there's another insidious creature living in the waters of Scotland."

"Toymaker will not renew current multimillion pound deal, that sees Shell-branded Lego sets sold at petrol stations, following a viral video against Arctic drilling by the green group"

"For a variety of reasons -- whether it be mitigating climate change, enhancing security, increasing economic incentives or even improving the health of indoor living -- countries around the world have been investing in ways to boost energy efficiency. Worldwide, that market of cutting back on energy waste is growing and is now worth at least $310 billion, reports the International Energy Agency."

"The share-price boom at U.S. energy firms has gone bust, due to slumping global growth and tumbling crude prices."

"Here’s to the continual intellectual tussles that produce technological leaps like the super-efficient and durable LED light bulbs that are increasingly displacing incandescent and fluorescent bulbs (and sooty kerosene lamps) and garnered a Nobel Prize for three physicists on Tuesday."

"OSLO --  Governments are failing to meet goals to protect animals and plants set out in a biodiversity plan for 2020 that also aims to increase food supplies and slow climate change, a U.N. report showed on Monday."

"Scientists have devised a new map of the Earth's seafloor using satellite data, revealing massive underwater scars and thousands of previously uncharted sea mountains residing in some of the deepest, most remote reaches of the world's oceans."

"Research published Sunday concluded that the upper 2,300 feet of the Southern Hemisphere’s oceans may have warmed twice as quickly after 1970 than had previously been thought."