Alex Nussbaum is a reporter at Bloomberg news who specializes in energy- and environment-related issues. Before this, he specialized in climate change and environmental issues for Bloomberg.
Nussbaum is a native New Yorker. He is a graduate of Cornell University. 
In 2002, he attended the Metcalf Institute for Marine and Environmental Reporting’s 2002 Annual Science Immersion Workshop for Journalists at the University of Rhode Island. Among the topics covered at the workshop were various topics related to oceans and the environment in general. One of the biggest topics covered was a lawsuit against companies that made lead-based paint by then Rhode Island Attorney General Sheldon Whitehouse (D).
After graduating from Cornell University, he went to work at the Pottsville Republican in eastern Pennsylvania. Then he became the environmental reporter at The Record of Hackensack, New Jersey. During his time there, he was part of a team that won the Grantham Prize for Reporting on the Environment. 
In 2008, he joined Bloomberg News as its environmental reporter. Among the stories he has covered at Bloomberg were stories related to climate change. He frequently reported on issues such as fossil fuel divestment, the growth of the solar industry, and issues such as cap and trade and carbon taxation. 
He attended the 2014 United Nations Climate Change Conference in Lima, Peru, focusing on the debate between industrialized and developing nations over whose policy preferences would dictate international environmentalist policy.
In 2015, when the Paris Climate Pact was signed, he claimed that opponents of radical environmentalist regulation were in their “twilight.” He claimed that a deal was all but inevitable. President Donald Trump withdrew the U.S. from the Paris Climate Pact in 2017.
In April 2016, Nussbaum switched beats. He moved from the environmental and climate change beat to covering the oil industry. He first focused on shale oil but he began focusing on other aspects of the oil industry.