Green news roundup: Artificial forests, fusion power and bee-eating hornets

Environment news • Planet Earth is home to 8.7 million species, scientists estimate • China's love affair with the car shuns green vehicles • Europe's farmland birds in decline • Invasion of the Asian bee-eating hornet • Oil spill investigation begins as Shell plugs North Sea leak On the blogs • David Coleman on population and the environment – live chat • How can safety at advanced stop zones be improved for cyclists? • Counting the Earth's living riches is a landmark moment • Does assigning ecosystems an economic value really work? Multimedia • The week in wildlife - in pictures • The artificial forests of the future – big picture • Round-the-clock solar power plant in Spain – big picture Features • Fusion power: is it getting any closer? • Vietnam's rice bowl threatened by rising seas • UK leads clampdown on rhino horn trade • Why birds of a feather flock together Best of the web • Climate Central: What the east coast earthquake means for US nuclear plants • Skeptical Science: What tar sands and the Keystone XL pipeline mean for climate change • OurWorld 2.0: How an ecocide law could prevent another Nigerian oil disaster • IPS: Energy-saving 'setsuden' campaign sweeps Japan after Fukushima For more of the best environment comment and news from around the web, visit the Guardian Environment Network . ...And finally • Reasons to make a mockery of conservation science Satire can expose biases which can blind us to alternative perspectives, say two authors of a new report