European stocks closed sharply lower Tuesday. Bob Parker from Credit Suisse considers what's making people so nervous in a traditionally quiet month.

In an effort to help travelers everywhere, Nokia and Lonely Planet have teamed up to distribute travel guides electronically. Tom Hall from Lonely Planet spoke to CNBC.

In a recent report, Peter Brabeck-Letmathe, chairman of Nestle, openly criticized the climate-change lobby for concentrating too hard on promoting biofuels and preventing land being used for food crops.

The markets have taken their eye off oil and are focusing on the financials, Alpesh Patel from Praefinium Group told CNBC. Patel says there's a short-term buying opportunity in financials and housing stocks.

PSP Swiss Property reported a double-digit plunge in sales and pretax profit for the first half Tuesday. Dr. Luciano Gabriel, CEO of PSP Swiss Property, spoke to CNBC about the results.

London-listed Mexican miner Fresnillo posted a 56% jump in first-half profit Monday and said it's confident it will meet full-year targets. CEO Jaime Lomelin spoke to CNBC.