ALYSSA MUNOZ WAS NEAR COLUMBUS, WHERE EFFORTS ARE BEING MADE TO FIX A GAP. A WALL SEPARATING THE BORDER TOWNS OF PUERTO PALOMAS AND COLUMBUS. WE HAVE A VERY GOOD RELATIONSHIP WITH PALOMAS.

Tiny copper 'nano-flowers' have been attached to an artificial leaf to produce clean fuels and chemicals that are the backbone of modern energy and manufacturing. Tiny copper 'nano-flowers' have ...

JOHANNESBURG/ LONDON, Jan 31 (Reuters) - Africa's biggest copper producers, the Democratic Republic of Congo and Zambia, are working on deals to gain exposure to metal trading as a demand surge ...