Abstract

Climate change is one of our time’s most pressing issues, posing significant challenges to our communities and the environment.
Sea level rise, ice sheet and glacier shrinkage, catastrophic floods, and the effects of climate change are global in scope and
unprecedented in scale. Adapting to these consequences in the future may be more difficult and costly if significant action is not
taken today. Several causes, including the use of fossil fuels, contribute to climate change by releasing CO2 into the atmosphere,
causing the planet to heat up and culminating in climate change. In the current context, green hydrogen (GH) plays a critical
role in overcoming this challenge. GH is hydrogen fuel that is produced using renewable energy rather than fossil fuels. Every
year, about 100 million of tons of hydrogen are generated for a variety of commercial applications. The huge majority of this
industrial hydrogen is derived through coal gasification or steam methane reforming, both of which need a high level of strength
and produce significant CO2 emissions. The electrolysis of water produces a significantly lesser percentage of hydrogen, which
is a far more sustainable and clean approach if the energy is derived from renewable sources. A novel, green method of producing
hydrogen could reduce global warming-causing greenhouse gas emissions and help countries to achieve their climate goals. The
paper points out how the concerns of today, including climate change can be turned into the use of clean energy. The objective
of this article is to give an overview of the current situation regarding green hydrogen and its applications.