Scientists assessing how fast glaciers in Greenland are melting in order to help countries prepare for problematic rises in sea levels.

It is Northern Ireland's drug of choice, but the relationship with alcohol can be problematic, a presenter discovers.

The decision to seek the arrest of Sudan's president is a bold human rights move, but one that will cause diplomatic problems, says the BBC's Paul Reynolds.

Logistical reasons could make it problematic to hold a referendum at the same time as elections in Jersey.

Brighton midfielder Charlie Oatway is back in training after being plagued by a problematic ankle injury for 18 months.

China's PM speaks of closer ties as well as a problematic past in his historic address to Japan's parliament.

Prime Minister Tony Blair warns against the Tories taking power in Wales after May's assembly elections.

Barnet forward Liam Hatch will see specialists at Moorfields Eye Hospital on Tuesday about his problematic left eye.

As abductions of Iraqi officials become more daring, BBC News looks at their problematic bodyguard arrangements.

South Africa all-rounder Jacques Kallis will have an operation on his problematic injured elbow.

Ipswich midfielder Gavin Williams is out for up to four weeks with a problematic knee injury.

Britain holds the unenviable title as one of the top drug-taking nations in Europe but what do we know about recent trends?

A new computer system designed to improve policing in Sussex is running more than a year behind schedule.

Writing scores for Hollywood movies is becoming an increasingly star-studded job option - but also problematic.

Wrexham Football Club has two weeks to try and turn round its fortunes after a problematic two years.

Oil companies have unveiled a string of spectacular results, but their prospects are surprisingly problematic.

Edge of the City is at times a deeply compelling study of people on the margins of society - and at times deeply problematic.

In the light of the Bichard report, David Blunkett has made a national police intelligence system a priority. Home affairs analyst Jonathan Silverman takes a closer look at the surrounding issues.

Supporters of the climate change agreement continue to hammer out details, despite Russian ratification remaining problematic.

New tighter anti-discrimination laws come into force, in a move welcomed by many but seen as problematic by legal experts.