US seeks to polish tarnished reputation with new climate change pledges ahead of Earth Day

The Biden administration has been laying the groundwork for its new target, unveiling a $2 trillion infrastructure package to expand clean energy and transport.

The United States hopes to restore its shattered credibility when it hosts a climate change summit next week by pledging to cut its greenhouse emissions by at least half and securing agreements from allies for faster reductions, according to two sources familiar with the matter.