This is a small selection of cases we are currently working on, around the UK and internationally.
The site supports almost 46,000 waterbirds in the winter, including internationally important numbers of whooper swans.
Proposals to upgrade the A9 trunk road through RSPB Scotland's Insh Marshes and over the River Spey in the Cairngorms.
An application for an 11-turbine offshore wind farm north of Aberdeen has been consented by the Scottish Government.
We must fight to protect Catfield Fen, an important habitat in one of Europe’s most important wetland sites.
A proposed golf course threatens a protected area of valuable coastal dune habitat, home to many species of wildlife.
Fantastic news, permission for a biofuel project which could have destroyed Dakatcha Woodland has been refused.
The Danube Delta is well known as one of Europe's premier wetlands.
The case began with our concerns over Natural England's actions in relation to an upland shooting estate, Walshaw Moor.
The Falkland Islands are home to spectacular wildlife including important populations of seabirds and penguins.
Filey Bay has given life to generations of seabirds, but in recent years it has also claimed many victims.
Scottish Ministers have granted consent for four offshore wind farm developments in the Firths of Forth and Tay region.
Initial public consultation has been undertaken by Scottish Power Renewables, who hope to construct a large wind farm.
HS2 has become a totemic environmental issue and a test for the new government's environmental credentials.
Statoil has submitted plans to build the first floating wind farm off the Scottish east coast.
Since 2007 more than 360 projects were proposed which will cause direct harm to feeding habitats of red-breasted geese.
Three-quarters of the world population of lesser flamingos depend on Tanzania's Lake Natron as a breeding site.
Fighting plans to develop housing at Lodge Hill - one of the most important sites in the country for nightingales.
Highways England is consulting on a new road crossing of the Lower Thames to supplement the existing Dartford crossings.
An inquiry is underway, considering proposals to build a new motorway south of Newport across the Gwent Levels.
Scottish Government is considering two offshore wind farm applications which represent large-scale development.
A planning application for a space port at Scolpaig, North Uist has been submitted.
A proposed major new road could threaten some of the most important wildlife habitats in Oxfordshire and Buckinghamshire
Pentland Firth & Orkney Waters offer significant renewable energy resources in the form of wave and tidal activity.
We are supporting Scottish Natural Heritage's objection to a development which could cause significant harm to the SPA.
Construction of an airport & the development of tourism in St Helena may have a profound effect on the environment.
Serengeti National Park is one of the most famous national parks in the world but could be severed by a major highway.
The Sizewell C development has the potential to have a major impact on one of the UK's most wildlife-rich areas.
Highland Council has been notified of proposals for a vertical spaceport in Sutherland’s Flow Country.
We are objecting to a proposal to build a tunnel that will directly impact a number of stone-curlew nesting territories.
We've objected to a windfarm application likely to have a significant impact on protected birds & habitats.
One of the most important wetlands in Africa is in danger of drowning under a plethora of proposed developments.
We are against the construction of an airport in the Thames Estuary, including the government's latest proposals.
The Environment Agency's decision to turn off pumps in the Lyth Valley could provide a chance for habitat restoration.
The Severn Estuary and its wildlife is under threat from a proposal to build a tidal barrage to generate electricity.
400 years ago, the Essex coast was a wild place, a wildlife haven and a source of livelihood for local communities.
Rare and vulnerable birds are under threat from development in one of the UK's most unique and wildlife-rich landscapes.
RSPB Scotland has significant concerns about plans to site turbines between feeding and roosting grounds used by geese.