States go it alone on the environment in the absence of federal support

Asset manager also shuns weapons manufacturers as it extends socially responsible strategy

Ex-Fed chief backs plan to replace environmental regulations with new levy on emissions

Check for environmental impact meant to address consumer distrust of hydraulic fracturing

EU sparks huge rally in carbon credits after overhauling broken system

Climate report says next decade will be unique ‘use it or lose it’ moment in economic history

New rules to limit sulphur pollution will force efficiency gains to save fuel costs

Water shortages, pollution and soil problems create crisis in area struggling to support millions

Suppliers to carmakers say Birmingham’s plan to cut emissions will hike their costs

Mining companies divided as investor pressure mounts while short-term gains entice

The public-private NHS, Russian anti-vaxx bots, the burden of booze

Officials predict reduced use of coal-fired plants even under lighter-touch regulation

The UK capital was a pioneer in limiting cars, but it is now almost as dirty as New Delhi or Beijing

Pilot programme would cover a ‘low-emission’ street in financial district

Release of plans coincides with rally in West Virginia heartland ahead of midterm elections

Government intends to ban sale of most-polluting fuels to tackle air quality

GE and Siemens lose market share in battle with Mitsubishi Hitachi Power Systems

Khan wants to follow New York in restricting number of cars using apps such as Uber

Government under pressure to justify award to big business-backed charity

Academics tap concern from investors over the measurement of companies environmental records