Jayne saw that a community in Malaysia was living in unsafe homes. So she founded an organization that builds sustainable houses for the families. It's a lot more rewarding than her old advertising job, she says.
When fires tore through a poor area of Chile, residents were devastated. Now Carolina, a 28-year-old architect, is teaching them to rebuild efficient, sustainable homes that will last for a long time.
Bees are having a hard time. Pesticides, viruses, varroa mites and climate change pose major threats. Scientists have found that some bees can cope better with others.
Renewable energy sources are on the rise, the Renewable Energy Policy Network for the 21st century (REN21) has found. REN21's Christine Lins says China especially has stepped up efforts.
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