The wave of refugees fleeing crop failures, droughts and rising sea levels will grow drastically over the next three decades if world governments do not intervene, according to the World Bank.
Facing EU penalties over poor air quality, Germany has said it wants to test free public transport in five cities. Bonn and Essen are among the cities to serve as testing grounds for the idea.
Nine European member countries are just one step away from being taken to court for breaching EU air pollution limits.
The European Environment Agency (EAA) said preliminary estimates showed a 0.7-per-cent decrease in emissions blamed for climate change compared to 2015.
The concentration of carbon dioxide (CO2) in the atmosphere has hit a new high with the UN warning that drastic action is needed to achieve targets set by the Paris climate agreement.