<p>Beginning January 1, 2020, Singapore's Maritime Port Authority will ban discharge into the ocean of "wash water" that is created when ships capture sulfur from engine exhausts using open-loop exhaust gas scrubbers. The ban is being imposed to prepare one of the world's busiest ports for International Maritime Organization rules that will require ships to use cleaner fuels beginning in 2020, including reducing the sulfur content in fuel from 3.5% to below 0.5%.

<p>On November 29, a Honduran court convicted seven men for the 2016 murder of Berta Caceres, an indigenous land rights campaigner who led opposition to the construction of a hydroelectric dam on the ancestral lands of her Lenca tribe. Caceres was shot and killed at her home on March 2, 2016, after receiving death threats over her challenges to the Agua Zarca dam that threatened to displace hundreds of indigenous Lenca. The seven men face up to 30 years in jail.

<p>On November 28, the European Union's (EU's) executive branch proposed to cut its greenhouse gas emissions to net zero by 2050. The proposal is far more ambitious than the national targets set by many of the EU's 28 member nations and is likely to be met with resistance. To achieve net-zero emissions, any greenhouse gases that are emitted would need to be soaked up by forest growth or by new technologies that remove carbon from the atmosphere.