Participants in the Madoff investment scandal the receiver assigned to Madoff's Ponzi scheme, extracted a settlement from Tremont worth over one billion dollars. A $1 billion class-action federal lawsuit was filed in Colorado against Fiserv, Inc. of Brookfield, Wisconsin whose subsidiaries were custodians for pension or IRA accounts and invested with Madoff. The complaint alleges Fiserv failed "to hold and safeguard assets entrusted to it" by about 800 Madoff customers who had been told to hire Fiserv to handle their accounts with him. Fiserv is accused of breach of fiduciary duty, fraud, negligence and aiding and abetting breach of fiduciary. Fiserv sold its investment account administration
European Union Emission Trading Scheme allowances to the authorities to cover their emissions. If emission exceeds what is permitted by its allowances, an installation must purchase allowances from others. Conversely, if an installation has performed well at reducing its emissions, it can sell its leftover credits. This allows the system to find the most cost-effective ways of reducing emissions without significant government intervention. The scheme has been divided into a number of "trading periods". The first ETS trading period lasted three years, from January 2005 to December 2007. The second trading period ran from January 2008 until December 2012, coinciding with the first commitment period