A small Swedish Coast Guard vessel navigates a thick oil spill at Tjorn, on the Swedish west coast Saturday, Sept. 17. The spill, one of the largest in Sweden in several years comes from a ship collision off the Danish west coast on Sept. 10. Erik Abel/Scanpix/AP
People displaced by floods are silhouetted against sunset as they travel to safe area on the outskirts of Mirpur Khas, in Pakistan's Sindh province, Saturday. Shakil Adil/AP
Geoff Ogilvy hits out of a bunker on the fourth hole during the final round of the BMW Championship golf tournament Sunday, in Lemont, Ill. Nam Y. Huh/AP
A "Woodie" is reflected in the hubcap of the Ford wheel at the the world's largest gathering of wooden bodied automobiles in Encinitas, California Saturday. The event known as "Wavecrest" is in its 31st year and attracts over 300 woodies and their owners from across the United States. Mike Blake/Reuters
Brazil and the USA play a match at the Newport Polo grounds in Portsmouth, Rhode Island, Saturday. Brazil won the 6-Chukker match. This event is part of the International Polo Series. Alfredo Sosa/Staff
A single engine T-28 from the six-plane Trojan Horsemen Demonstration Flight Team crashes and explodes during a performance at the Thunder Over the Blue Ridge Open House and Air Show, Saturday, in Martinsburg, W.Va. Ron Agnir/Journal Newspaper/AP
A young girl helps hold the U.S. flag during the national anthem prior to Game 2 of a first-round WNBA playoff basketball series, Sunday, in San Antonio. Eric Gay/AP
New England Patriots quarterback Tom Brady (12) flips over on his head after he was hit hard by San Diego Chargers defensive tackle Cam Thomas, not seen, in the second half of an NFL football game in Foxborough, Mass., Sunday. Charles Krupa/AP
Teachers at the Al-Fayha School in Tripoli hang an effigy of Moammar Qaddafi as students chant slogans against the fugitive leader in Tripoli, Libya, Saturday. Kim Gamel/AP
Young Samoan rugby fans wait for the start of their team's Rugby World Cup match against Wales at Waikato Stadium in Hamilton, New Zealand, Sunday. Dita Alangkara/AP
Tuareg men parade on camels during the "Cure Salee" festival in Ingal, Saturday. Tuareg, Peul and Wodaabe nomads congregate each year at the salt flats around the northern oasis town of Ingal for the "Cure Salee" (salt cure), where their camels, cattle, sheep and goats drink the mineral-rich water after months on the move. Luc Gnago/Reuters
After hitting a home run in the first inning, the Los Angeles Dodgers Matt Kemp backs away from a close pitch from Pittsburgh Pirates starter Brad Lincoln in the second inning of a baseball game in Los Angeles Sunday. Reed Saxon/AP
Walkers near the finish during the 5k Heart Walk which raised $1.3 million in Irvine, Calif. Sunday. More than 10,000 walkers took part in the American Heart Association Heart Walk at the Great Park in Irvine Sunday. Mindy Schauer/Orange County Register/AP
Swelling cities are strategizing, innovating, and proactively investing in ways to nimbly operate in the face of growing threats such as climate change, transportation, and housing.
BySophie Hares, Reuters
Urban resilience, no longer just a buzzword, is fast becoming part of the fabric of cities around the world, which need to ramp up strategies to ensure the wellbeing of their booming populations in the face of growing threats, experts say.