Is sustainable flying even possible? A fleet of ingenious technologies promises to reduce or even eliminate the greenhouse-gas emissions emanating from jet airplanes. But at best it’s likely to be a long haul.
2 huge asteroid strikes 36 million years ago didn't change Earth's climate over the long haul, study finds
The Long Haul: How COVID Continues to Threaten Your Heart Years After Infection
Governments must stay in it for the long haul on long covid research
