The standing debate over whether hydrological systems are deterministic or stochastic has been taken to a new level by con-troversial applications of chaos mathematics. This paper reviews the procedure, constraints, and past usage of a popular chaos time series analysis method, correlation integral analysis, in hydrology and adds a new analysis of daily streamflow from a pristine watershed. Signi ... read more >>

Post-glacial rebound and changes in the Earth’s gravity field protect the Finnish coast against rising sea levels, especially in the Gulf of Bothnia. In the Gulf of Finland, the sea level is starting to rise.
The rise in ocean levels varies regionally

Global warming raises ocean levels at an accelerating pace, currently on average about three millimetres per year. The reasons for this are the ... read more >>

Interesting video about the green infrastructure project taking place in Lancaster, Pennsylvania. Examples such as green roofs, pervious pavement, rain barrels and tree planting are shown. Some benefits of green infrastructure over grey infrastructure are also explained. ... read more >>

In drought-plagued New Mexico, water is gold.

And this week, Mora County in the northern part of the state took a firm stand to protect its precious liquid: it banned all oil and gas extraction from county lands. It is believed to be the first county in the nation to take such action.

Big oil companies, notably Shell, had reportedly already leased more than 100,000 acres of land in Mora ... read more >>

Six months after hurricane Sandy hit the US east coast, a new report from Climate Central reveals yet element of destruction: 11 billion gallons of partially or untreated sewage leaked into rivers, lakes and waterways in the aftermath of the storm. This graphic explores where sewage overflows happened, what caused them, and how treated each overflow was. ... read more >>

Experts say people need to use less water and take precautions to reduce polluted stormwater runoff — changes that the county government encourages through education but has trouble enforcing legally.

Stormwater runoff carries many pollutants with it when it seeps back into the aquifer, sharing a pollutant cocktail with the main source of tap water. The water is cleaned before it reaches fauc ... read more >>

Sewage treatment plants are "especially vulnerable" to problems in the climate change era, write the report authors. Unlike housing and transportation, which are nice to have near the coast but technically movable, the very function of sewage plants all but requires them to locate near waterways. A low-lying placement lets gravity do some of the work piping waste into plants, and proximity to wat ... read more >>

Angel Mission provides clean water for the very remote, unreached Datooga people of Tanzania. They number approximately 250,000. Their people are less than 1% literate and 50% of children die before reaching the age of five. This new clean water source will prevent waterborne diseases and improve overall quality of life for the Datooga. ... read more >>

A solar plane is scheduled to take off and cross the United States. ... read more >>

For two years now, flower growers along the shore of Kenya’s Lake Naivasha have been paying farmers in the hills 40 kilometers away to adopt sustainable agriculture practices. They’re doing it to save their lake, but it’s also helping farmers lift themselves out of poverty. ... read more >>