"If there is one area where the world needs our leadership, it is on protecting our climate," she said Wednesday. "This is an existential issue for Europe - and for the world."
The European Commission is scheduled to present a first draft of a European Green Deal after taking office in December and deliver it within 100 days.
In her published guidelines for the European Green Deal, von der Leyen proposed increasing the E.U.'s target for reducing emissions by at least 50% until 2030, compared with 1990 levels. In 2018, E.U. greenhouse gas emissions were estimated at 23% below the 1990 level.
"She can propose targets but in the end, she very much depends on the member states," said Oliver Geden, a lead researcher at the German Institute for International and Security Affairs. The E.U. Commission can only propose measures, but needs the votes of enough member states to enact them into law. "I'm not sure how many member states will go there," Geden said of von der Leyen's proposed 2030 targets.
E.U. member states Poland, Hungary and the Czech Republic have blocked efforts to reach climate neutrality by 2050, demanding more money to help them transition.
Von der Leyen has pledged extra funding to help more carbon-intensive economies in the European Union make the transition to climate-neutral industries. The so-called Just Transition Fund is planned to amount to tens of billions of dollars, but is still subject to negotiations. Additional funding for research and innovation will come from a "Sustainable Europe Investment Plan," which will support about $1.1 trillion of investment over the next decade, according to the published guidelines.
By 2025, von der Leyen also plans to turn the E.U.'s lending arm into "Europe's climate bank" by dedicating half of its total financing to climate investment. She proposed extending the E.U.'s Emissions Trading System - which taxes polluting industries using a "cap and trade" system - to include the maritime sector, as well as aviation, traffic and construction sectors.
But some members of the European Parliament and activists are already skeptical about how serious von der Leyen is about her plans and - even if she is - whether her mandate gives her enough leeway to pass them.
"The Commission's structural and political constraints are likely to produce a set of watered-down, piecemeal solutions," David Adler and Pawel Wargan of the international activist coalition Green New Deal for Europe wrote in an op-ed for Politico. "Meanwhile, the clock on climate and environmental breakdown keeps ticking away."
Germany's Association of Chambers of Industry and Commerce, or DIHK, criticized the deal for not proposing concrete measures for economic growth. "Merely increasing the EU's already demanding greenhouse gas reduction targets will not help," DIHK wrote in a statement. "Europe does not simply need more climate policies - the EU needs climate policies that are more economically efficient."
To meet the goal set by the Paris agreement to stay below a 1.5 degrees Celsius temperature rise, the required cuts in emissions are 7.6% per year on average, according to a 2019 report by the U.N. Environment Program. Scientists estimate that current targets would lead to up to 3 degrees Celsius of global heating and cause catastrophic changes across the globe, including floods, cyclones, long-lasting heat waves, and record-breaking wildfires, among others.
E.U. member states are expected to submit plans to meet targets by the end of 2019.