Reuters: Global warming is fast rising in the pile of crises facing China as it pursues the unshakeable goal of economic growth while grappling with international pressure to curb its greenhouse gas output. China, the world’s number three economy, is the top greenhouse gas polluter, scientists say, and its emissions of the main greenhouse gas, carbon dioxide, are set to keep rising. The United States’ climate change policy envoy, Todd Stern, is in Beijing this week, the latest in a …