SINGAPORE, April 22 (Reuters): Climate change campaigners gathered outside Britain's parliament building ahead of Earth Day to urge action on global warming, while volunteers worldwide geared up to plant trees and clear trash to mark the 54th annual celebration of the environment.
Earth Day this year, officially on Saturday, follows weeks of extreme weather with temperatures soaring to record highs in Thailand and a punishing heatwave in India, where at least 13 people died of heatstroke at a ceremony last weekend.
