Never too many pedals

Cloud view clears up

Origin of aerosols dictates cloud shape

US iterates oppostion to EU's proposed tax on airline emissions

Brick kilns major source of air pollution in South Asia

Contribute 10% to the total air pollution in south Delhi, 11% in Patna, 30% in Dhaka

US to ban use of greenhouse chemicals that have cleaner options

Move to reduce carbon dioxide emissions by up to 42 million tonnes by 2020

Air pollution killed 7 million in 2012, says WHO

Revised estimates double number of deaths attributed to air pollution

Air pollution linked to autism

Exposure to diesel particulates, heavy metals doubles the risk

How humans invite storm

Tornado and storm frequencies linked to human activities

Raising a stink

Air quality in poultry farms in Europe suffers badly due to ammonia from chicken droppings

Bad air

Rains for Mexico

Mexico City uses technology to make its own wind and rain. But the sceptics are not impressed

Pollution tapers off rain

Puffed out

Exercising after exposure to air pollution can be fatal for heart patients

A dinosaur mindset

Households top Irish dioxin emitters' list

A slur

Rajasthan's marble business poisons waterbodies and chokes lungs

Climate crime revisited

Foul is fair, air is foul

Backdoor democracy

Central directives on coastal zones could be used to circumvent rules

Experts propose various technologies for efficient coal usage at CSE Coal Conference

Technologies discussed include HELE, IGCC and CFBC

Unsafe in womb

Exposure to particulate matter during pregnancy harms foetus

Key to gridlock

Government plans to levy charges on cars to ease congestion in cities

US to lead climate coalition to reduce non-CO2 pollutants

Aims to slow down global temperature rise by 0.5°C

Emissions curtailed

Learning to fly

Ultralight aircraft are being used to lead endangered cranes to their winter home