Shares of BSkyB dropped by6% and was the top loser on the blue chip index on Monday as the potential takeover by Rupert Murdoch's News Corp hangs in the balance. The UK government said it was preparing to ask telecoms regulator Ofcom for additional advice.The Australian government's proposal on climate change stoked International Power's share price as the electricity-generating company said the plan is expected to be cash flow positive and earnings neutral in the first five years. Mining giant Rio Tinto, however, fell lower after voicing its disappointment over Australia's carbon tax proposal of A$23 a tonne on the 500 heaviest emitters as of 1 July 2012, joining the sector's warning that the plan would hinder investment and jobs growth in the nation's mining industry. Sector peer Xstrata was also in the red after slamming the scheme, saying that it is disappointed at the government's "lack of genuine consultation". Banking peers Royal Bank of Scotland, Lloyds and Barclays were also unwanted. Insurers Aviva, Admiral and Legal & General were also under the weather.BCFTSE 100 - RisersInternational Power (IPR) 312.30p +3.65%ARM Holdings (ARM) 619.50p +1.39%Tullow Oil (TLW) 1,317.00p +1.07%Shire Plc (SHP) 2,000.00p +1.01%Randgold Resources Ltd. (RRS) 5,305.00p +0.95%Fresnillo (FRES) 1,437.00p +0.91%British American Tobacco (BATS) 2,858.00p +0.39%Standard Chartered (STAN) 1,632.00p +0.28%Reckitt Benckiser Group (RB.) 3,474.00p +0.20%BP (BP.) 459.30p +0.17%FTSE 100 - FallersBritish Sky Broadcasting Group (BSY) 705.00p -6.00%Essar Energy (ESSR) 381.40p -4.15%Aviva (AV.) 420.90p -3.42%Lloyds Banking Group (LLOY) 45.01p -3.34%Admiral Group (ADM) 1,572.00p -3.32%Wolseley (WOS) 1,981.00p -3.27%Royal Bank of Scotland Group (RBS) 36.00p -3.25%Barclays (BARC) 235.60p -3.14%ITV (ITV) 68.95p -3.09%Legal & General Group (LGEN) 119.80p -2.76%