- We know corruption is a problem around the world. But how bad is it and what can be done? The Corruption Perceptions Index measures the perceived levels of public sector corruption in countries worldwide.

- The 2012 Corruption Perceptions Index is a reminder that no country is immune to corruption. See two video clips about how we use research to highlight and challenge corruption.

- Transparency International's campaign "Time to Wake Up" is running in 17 countries across Latin America, Asia, Africa and Europe, reaching over three million people. From rallies to animated video contests, to public debates and petitions, the Time to Wake Up campaign has made a real splash.

- As negotiators talk climate in Qatar this week, we share a video of a conversation between the directors of Transparency International and Greenpeace about accountability, climate change and a common vision.

- International donors have pulled funds from Uganda in the wake of corruption allegations. What can be done to better ensure aid?

- Friday, 23 November marks the International Day to End Impunity. At Transparency International we view impunity as getting away with bending the law, beating the system or escaping punishment. Impunity is anathema to the global fight against corruption.

- Last year in Busan, world leaders agreed that transparency and accountability are critical to improving aid effectiveness. Have aid donors stuck to their agreement?

- Brazil’s Supreme Court delivered a strong message on 9 October that there will be no impunity for politicians.

- Senegal's peaceful handover of power this year brought hope to the country, but corruption remains a concern. Our Senegalese partners are mobilising citizens to challenge corruption. Learn more about their work and read an interview with our chair, Huguette Labelle, about her visit to Senegal.

- The Brasilia Declaration adopted at the 15th IACC makes an urgent call to end the impunity of the corrupt, wherever they are.