Liberal Colombian Senator Piedad Córdoba asked The European Union on Thursday to pressure Colombian president Juan Manuel Santos on the subject of ending Colombia's violent internal conflict.

The senator asked the E.U. to prod Santos towards dialogue with groups such as FARC and the ELN.

Colombian President Juan Manuel Santos and Brazilian President Luiz Inácio Lula da Silva met in the Brazilian capital of Brasilia on Wednesday.

The two presidents signed eight agreements covering various policy areas between the two countries.

EAFIT University in Medellin opened a so-called "green building" on its campus this week.

The environmentally-friendly building collects and re-uses rainwater, has a power plant that uses lower amounts of electricity, and was designed with a system of natural air flow for better low-cost ventilation.