Heleen Ekker covered the 2021 United Nations Climate Change Conference (COP26) in Glasgow, providing insights into the negotiations and the commitments made by world leaders. Her reporting highlighted the challenges and progress in global climate policy, reinforcing her status as a leading climate journalist.

In 2020, Heleen Ekker launched a podcast series focused on climate change, exploring various aspects of the crisis through interviews with experts and policymakers. The series aimed to engage a broader audience in understanding the complexities of climate issues and the urgent need for action.

Heleen Ekker was awarded the prestigious De Tegel award for her investigative reporting on the impact of climate change policies in the Netherlands. Her work provided a critical examination of governmental strategies and their effectiveness, earning her recognition for her thorough and impactful journalism.

In 2018, Heleen Ekker co-authored the book 'Klimaatverandering: Feiten en Fabels', which aimed to debunk common myths about climate change and present scientific facts in an accessible manner. The book was well-received and further cemented her reputation as an expert in environmental issues.

Heleen Ekker provided extensive coverage of the 2015 United Nations Climate Change Conference, where the Paris Agreement was adopted. Her reporting highlighted the global commitments made to combat climate change and the implications for the Netherlands, establishing her as a prominent voice in climate journalism.

Heleen Ekker began her career at NOS, one of the leading public broadcasters in the Netherlands, where she initially worked as a general news reporter. Over the years, she developed a strong focus on environmental and climate issues, becoming a key figure in the newsroom for these topics.