science
Delhi's toxic winter air is back - is the Indian capital prepared for pollution?
The Delhi government has announced a four-month winter action plan, but experts say that won't be enough.
Source: BBC News
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Locals launch campaign to buy ancient wood
Locals have a year to raise the money needed to buy Ruscombe Wood near Stroud.
BBC News
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House martin artificial nests scheme set to expand
The artificial nests are more robust than the endangered migratory birds' own mud creations.
BBC News
science
The swan sanctuary wetland fighting climate change
The global campaign to restore the "soggy secret weapon" that can combat against climate change.
BBC News