Bosveld Phosphates has leaked polluted water into the Selati River, which flows through the Kruger National Park.
Land invaders are keeping the state from going ahead with a potentially lucrative transfrontier deal with South Africa and Mozambique.
The desire for scarce rhino horn has ensured that anti-poaching efforts have not stopped the killing.
A week-long spill is now under control, says SANParks, but the long-term effect on the environment is yet to be seen.
Several members of the public have called on SANParks for an explanation, after the Kruger National Park shot an elephant that attacked tourists.
Research shows that communities are eager to be involved in fighting poaching.
Project Rhino KZN wins the Rhino Rescue Award.
Rhino deaths could outpace births by 2026 if new methods, like a once-off sale of local stockpiles, are not adopted to kill the horn black market.
The number of poached rhino for the year has risen to 273, says the environmental affairs department.
An elephant has overturned a vehicle carrying two tourists in the Kruger National Park, injuring both, says officials.
The inability of the national park to pursue offenders across its border is costing game dearly
A total of 102 rhino have been killed since the beginning of the year, says the department of environmental affairs.
Africa's rhinos and elephants have been poached in near record numbers in 2012, with surging demand for horn and ivory driving the slaughter.
While South Africa is battling rhino poaching, it seems to be escaping the continental elephant purge. But not for long, writes Sipho Kings.
A new, state-of-the-art surveillance aircraft represents a vital alliance between the public and private sector in the fight against rhino poaching.
In an edited extract from his book Killing for Profit, Julian Rademeyer offers a glimpse into two sides of the complicated battle in the bush.
DNA data, tracker dogs, choppers - the Kruger National Park has pulled out all the stops to save its rhino, writes Sipho Kings.
A suspected rhino poacher has been shot dead in the Kruger National Park, while two others have been arrested for killing a mother and her calf.
South African National Parks CEO David Mabunda has hand delivered affidavits to M&G denying preferential tender procedure.