US President Barack Obama is hosting a summit with European Union leaders on a range of issues, including climate change, economic management and the NATO operation in Afghanistan. US Vice President Joe Biden will hold a welcoming lunch for the European leaders Tuesday ahead of the meetings with Obama. The EU will be represented by European Commission President Jose Manuel Barroso; the EU External Relations Commissioner, Benita Ferrero-Waldner; Swedish Prime Minister Fredrik Reinfeldt; and Swedish Foreign Minister Carl Bildt. The two sides are expected to reveal a new EU-US Energy Council to explore cooperation on energy security and efficiency.