Royal Dutch Shell is changing its tune on carbon, saying it will tie executive pay to shorter-term reductions in emissions. A dire government report on the far-reaching impact of climate change could increase pressure on the energy industry to curb greenhouse gas emissions and political leaders to act more decisively to reduce the use of fossil fuels, analysts said. Climate change involves a combination of factors that make it hard for people to get motivated. The city of Baltimore filed a lawsuit on 20 July against 26 oil and gas companies and entities, including BP, Chevron, and ExxonMobil, for knowingly contributing to what the city called the catastrophic consequences of climate change. A California federal court dismissed climate change lawsuits against five oil companies by the cities of San Francisco and Oakland, saying the complaints required foreign and domestic policy decisions that were outside the purview of courts, Chevron said on 25 June.