Gay by mercury
Water contamination may alter white ibises’ hormones
Trade war over green energy
Japan v Canada; US v China
Wake-up call
A fungus could wipe out American bats
Caspian tigers may not be extinct
World’s second-largest emitter might leave the first-ever global climate deal
Sweet-heart trouble
Evidence implicating sugar in heart disease builds up
Pray before you spray
Household cleaning products cause cardiac diseases
More grime on teflon
Chemical used in teflon triggers early menopause
According to report
Surprise move
Pyrrhic victory
Don't eat tuna
Breach of protocol